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CF/SD/XQD Performance Database - Continued
Card-to-Computer Transfer Speed: CompactFlash Readers
This page was last updated on April 13, 2011

If you're faced with copying pictures from a stack of CompactFlash cards to a Mac or PC, and time is of the essence, this section of the CF/SD Performance Database is for you. SD/SDHC/SDXC card readers are covered on a separate page.

The Readers

Almost all of the readers below support the UDMA protocol found in the fastest CompactFlash cards to emerge since mid-2006. For the quickest-possible transfer of photos from speedier memory cards to your computer, a well-engineered UDMA-capable reader is a must.

addonics_adsacf_thumb.jpg Addonics SATA CF Adapter ADSACF

This internal CompactFlash-only reader is meant to be installed in a drive bay or PCI slot of a Windows computer and then connected to a spare SATA port.

compuapps_thumb.jpg CompuApps OmniFlash USB 2.0 UDMA 40 UnoCF

This reader was the first USB 2.0 model to emerge with support for the UDMA protocol for faster transfers with newer high-speed CompactFlash cards and can still hold its own against UDMA USB 2.0 readers that have emerged since then.

The USB connector on this small CompactFlash-only USB 2.0 reader can be plugged directly into a computer's USB port, or it can be connected via the included extension cable.

delkin_expresscard54_thumb.jpgDelkin ExpressCard 54 CompactFlash Adapter

This CompactFlash-only ExpressCard adapter is compatible with computers equipped with ExpressCard 54 slots and has been available to date in two versions, both of which look the same and ship in similar or identical packaging, but offer different performance. ExpressCards can be designed to communicate internally with the host via USB 2.0 or PCIe. The first version of this adapter appears to use USB 2.0, and delivers read speeds commensurate with a modern USB 2.0 card reader. The second version is PCIe and is noticeably faster, but suffers from some compatibility problems. Both have been tested and the results are below.

As Apple's ExpressCard-capable MacBook Pro laptops have a narrower ExpressCard 34 slot, this adapter from Delkin is effectively for PCs only (and then, only ones with an ExpressCard 54 slot). Unlike CompactFlash card adapters fitted for 34mm-wide ExpressCard 34 slots, which require the adapter portion that holds the CompactFlash card to sit entirely outside the slot, a 54mm-wide ExpressCard 54 slot allows for a design that takes the CompactFlash card inside the slot along with the adapter.

More importantly, this type of adapter can - and both versions of the Delkin ExpressCard 54 CompactFlash model do - use a traditional recessed pin-style channel for the CompactFlash card, which we've found to be more durable and less prone to pin breakage than the current crop of ExpressCard 34 CompactFlash adapters, including ones from Delkin and Synchrotech.

For road warriors, there's one more benefit: the Delkin ExpressCard 54 CompactFlash adapter, when empty, doesn't stick out of the card slot by more than one or two millimetres, at least with our IBM/Lenovo T60 laptop. This means the adapter can ride in there all the time, so that when you have your laptop with you, you have your reader with you too. Additionally, it's possible to insert and remove just the CompactFlash card from this adapter without first removing the adapter from the computer, further extending its convenience.

Generally speaking, we've found CardBus and ExpressCard adapters to be a pain: between card incompatibilities, driver problems and broken connector pins, they are a good advertisement for sticking with external USB and FireWire readers. The first version of the Delkin ExpressCard 54 CompactFlash adapter has so far hummed along with none of the drama of certain other adapters, and that has been a pleasant change.

The second version, which is generally quicker than the first version, isn't quite as trouble free. More than a few CompactFlash cards, even fast ones, slow to a turtle's pace of less than 1MB/second in the PCIe variant of the Delkin ExpressCard 54 CompactFlash adapter. Plus, our normally rock-solid T60 test machine crashed twice during benchmarking. In short, the second version may be speedier, but the first version (which is probably no longer shipping) is more compatible and seemingly more reliable too.

The slowdowns and crashes we experienced with the second version of the Delkin ExpressCard 54 CompactFlash adapter mirror almost exactly the problems we saw when testing the Synchrotech CFExpressPro+, an ExpressCard 34 adapter. This likely means that both share the same controller.

delkin_imagerouter_thumb.jpgDelkin ImageRouter

This four-slot, CompactFlash-only USB 2.0 reader is intended for high volume workflows. It incorporates inside its hard-plastic shell a powered USB hub which, in addition to serving its own four reader slots, enables additional ImageRouter or other USB readers to be linked to it courtesy of a single USB port, for additional simultaneous card download capacity. The ImageRouter connects to the computer via a detachable cable and comes with a 100-240VAC adapter (which is required for the reader to work).

The Delkin ImageRouter is available on its own or in a kit with the company's BackupandBurn transfer and disc burning application.

griffin_simplifi_thumb.jpg Griffin Simplifi

The Griffin Simplifi combines a USB 2.0 card reader that accepts CompactFlash, SD/SDHC and various other memory card formats, a powered two-port USB 2.0 hub and iPod charging/syncing dock into one trim, well-designed desktop accessory.

It connects to the computer via a detachable cable.

hoodman_raw_usb_thumb.jpg Hoodman RAW UDMA USB 2.0

This CompactFlash and SD/SDHC USB 2.0 reader connects to the computer via a non-detachable cable and is nearly the same in appearance as Hoodman's RAW UDMA FireWire 800 reader.

(It's difficult to see in the picture at left that there is a separate SD/SDHC card slot beneath the larger CompactFlash slot.)

kingston_19in1_thumb.jpgKingston 19-in-1 Media Reader

This USB 2.0 reader, which accepts CompactFlash, SD/SDHC and various other memory card formats, connects to the computer via a short, non-detachable cable that's an ideal length for use next to a laptop. An extension cable is included for when the reader needs to sit further from the computer. The card slots can be slid flush with the reader's front when in use (as shown in the picture), then slid back inside the reader's shell for storage and travel.

lexar_udma_dualslot_thumb.jpg Lexar Professional UDMA Dual-Slot

This CompactFlash and SD/SDHC USB 2.0 reader features a pop-up design that, when popped down, keeps its twin card slots protected. It connects to the computer via a detachable cable.

Though the Lexar's black popup section - which is the actual reader portion - and its semi-translucent frame aren't intended to be separated, it's possible to do so to save space in an overstuffed laptop bag. The hinge mechanism that holds the two together can be separated without much effort and without damaging the unit. We did this, then completed the transformation by first putting some gaffer tape to cover openings on the black section's base, followed by small grippy feet (left over from a portable hard drive kit) onto the base's four corners.

lexar_expresscard_thumb.jpgLexar Professional ExpressCard

ExpressCards can communicate with the host computer via slower USB 2.0 or faster PCIe; this CompactFlash-only ExpressCard 34 adapter uses the latter method and, with certain cards, gives the fastest card-to-computer


sandisk_ext_firewire_thumb.jpg SanDisk Extreme FireWire

SanDisk's flagship CompactFlash-only reader utilizes a speedy OXFW912 FireWire 800/400 controller from Oxford Semiconductor and includes both FireWire 800-to-FireWire 800 and FireWire 800-to-FireWire 400 cables.

The read speeds for the Delkin Reader-39, Hoodman RAW UDMA FireWire 800, Lexar Professional UDMA FireWire 800 and Synchrotech CFFire800 Pro are effectively identical to this SanDisk reader, because all four utilize the same controller from Oxford. That said, the SanDisk Extreme FireWire reader has the nicest industrial design of the bunch. The Delkin, Hoodman and Synchrotech feature a non-removable cable, which reduces their travel ruggedness, while the Lexar's insert/eject mechanism is poor (though it's the only one to provide twin FireWire ports for daisy-chaining).

sandisk_ext_usb_thumb.jpg SanDisk Extreme III USB (original version)

This CompactFlash and SD/SDHC USB 2.0 reader is one of the most dependable and goof-proof readers we've ever used. Its lack of support for the UDMA protocol, however, means the quickest CompactFlash cards revert to operating in the slower PIO transfer mode which, as the results show, puts the brakes on throughput for this memory card type. This now-discontinued reader may not be a CompactFlash speed demon, but it remains a favourite here because it just works.

The SanDisk Extreme III USB (original version) connects to the computer via a detachable cable.

sandisk_ext_usb_2008_thumb.jpg SanDisk Extreme III USB (mid-2008 version)

Starting in July 2008, SanDisk began shipping a new version of this reader that supports the UDMA protocol for quicker transfers from newer CompactFlash cards that also support UDMA. At the same time, it became a CompactFlash-only reader; SanDisk removed the SD/SDHC slot in the redesign.

The SanDisk Extreme III USB (mid-2008 version) connects to the computer via a detachable cable.

sandisk_allinone_thumb.jpgSanDisk ImageMate All-in-One USB 2.0

Slated to ship in November 2008, this four-slot reader accepts CompactFlash (CF I only, which means thicker CF II cards such as the Hitachi Microdrive won't fit), SD/SDHC and numerous other memory card formats.

The ImageMate All-in-One USB 2.0 includes a removable, magnetically attached three-legged stand. It connects to the computer via a detachable cable. The unit we've tested is not final production, but is expected to be representative of the performance and compatibility of the reader that will ship to stores.

synchrotech_expresscard_thumb.jpg Synchrotech CFExpressPro+

ExpressCards can communicate with the host computer via slower USB 2.0 or faster PCIe; this CompactFlash-only ExpressCard 34 adapter uses the latter method, and it makes for throughput that rivals the fastest external readers with some cards. As the results show, certain card brands and models perform well in the CFExpressPro+ - a number deliver read speeds of over 40MB/second - but a sizeable minority work at less than 1MB/second, which is really the same as saying that these cards are incompatible with this adapter.

The shallow card slot of the CFExpressPro+ makes it possible to slide a card in slightly off angle, just off angle enough for the card to bend several of the adapter slot's pins. By comparison, the deeper slot of a typical external card reader means the card has straightened out by the time it reaches the pins at the rear of the slot.

We bent several of the CFExpressPro+'s pins during testing, despite taking care to insert each card straight on, which meant the adapter had to be replaced before we could complete the testing. The same thing occurred in day-to-day use of a Delkin ExpressCard 34 several months ago, and it features the same shallow slot design, so be aware of this apparent limitation in this type of CompactFlash adapter. And finally, we have also encountered the occasional OS X kernel panic when using the CFExpressPro+, with a Mac that is otherwise stable and contains a fresh operating system install.

The Systems

The test systems are:

iMac_thumb.jpg iMac 27 inch (2010)

Quad-Core Intel Core i5 2.66GHz, 8GB RAM, 1TB hard drive, Mac OS X 10.6.x. This computer is used for FireWire 800 and USB 2.0 reader testing.


macbook_pro_thumb.jpg MacBook Pro 17 inch (2009)

Intel Core 2 Duo 3.06GHz, 8GB RAM, 640GB RAID 0 hard drive array, Mac OS X 10.6.x. This computer is used for ExpressCard 34 adapter testing.

thinkpad_t60_thumb.jpg Lenovo Thinkpad W700ds

Intel Core 2 Quad 2.53GHz, 4GB RAM, 256GB 7200 RPM hard drive, Windows 7 Home Premium 64-Bit. This computer is used for ExpressCard 34 adapter testing.

vista_thumb.jpgAcer Aspire M5811

Intel Core i5 3.2GHz, 8GB RAM, 1TB 7200RPM hard drive, Windows 7 Home Premium 64-Bit. This computer is used for SATA/eSATA and USB 3.0 reader testing.
The Results

The CompactFlash read speed results below were generated with QuickBench 4, a cross-platform benchmarking utility we like because it produces numbers that equate closely to real world performance when using the operating system to copy digital SLR JPEG and RAW files from a memory card to the computer. QuickBench was set to Large Test (2-10MB), Allow Cache Effects was turned off and 3 test cycles were run. All cards were secure erased and then formatted in a Canon EOS-1D Mark IV or Canon EOS 5D Mark II before testing.

Use the NEXT FOUR READERS and PREVIOUS FOUR READERS links to navigate through all the reader data. The fields marked in blue represent the fastest read speed for that card. In the case of an incompatibility between card and reader, the field is marked --Error--.

To view all the results for this card type in a single table, click here. (Note that it may take several seconds for the large table to load.)

 

Readers 1-4 (of 25)
NEXT FOUR READERS 
Memory Card  Show Extra Info
Lexar USB 3.0 Dual-Slot (Win)
USB 3.0
Win 7
Pretec P240
USB 3.0
Win 7
Addonics ADSACF (internal)
SATA
Win 7
Addonics AEIDDSAU (internal)
SATA
Win 7
A-Data Turbo 350X 16GB 
40.1MB/s 40MB/s 43.3MB/s 44.4MB/s
ATP Pro Max 1GB 
17.5MB/s 16.7MB/s 15.1MB/s 17.8MB/s
ATP Pro Max 4GB 
12.7MB/s 11.2MB/s 13.2MB/s 13.2MB/s
ATP Pro Max II 300X 8GB 
38.7MB/s 38.2MB/s 39.5MB/s 41.2MB/s
ATP standard 1GB 
9.9MB/s 9MB/s Error 9.8MB/s
Calumet ProSpec 110X 2GB 
9.6MB/s 8.7MB/s 19.6MB/s 9.6MB/s
Corsair 80X 1GB 
11.4MB/s 11MB/s Error 11.1MB/s
Dane-Elec 300Xs UDMA 8GB 
38.9MB/s 38.6MB/s 75.8MB/s 40.6MB/s
Dane-Elec Proline 533X 8GB 
71.7MB/s 71.7MB/s 86.9MB/s 60.3MB/s
Delkin 125X 8GB 
24.2MB/s 25.8MB/s 26.3MB/s 26.2MB/s
Delkin CombatFlash 625X 16GB 
68.8MB/s 71MB/s Error 52.9MB/s
Delkin CombatFlash 685X 16GB 
32MB/s 80.7MB/s 83.2MB/s 61.7MB/s
Delkin PRO 1GB 
19.7MB/s 19.4MB/s 38.5MB/s 20.2MB/s
Delkin PRO 2GB 
18.6MB/s 18.3MB/s 35.4MB/s 18.5MB/s
Delkin PRO 8GB 
9.7MB/s 8.8MB/s 19.7MB/s 9.7MB/s
Delkin PRO 305X 4GB 
39.6MB/s 39.5MB/s 40MB/s 38.5MB/s
Delkin PRO 305X 16GB 
28.8MB/s 28.8MB/s 28.9MB/s 30.8MB/s
Delkin UDMA 420X 16GB 
50MB/s 49.6MB/s 53.5MB/s 46.3MB/s
Duracell Pro Photo 600X 8GB 
74.1MB/s 76.4MB/s Error 60.9MB/s
Fujifilm 310X 4GB 
35.5MB/s 35.6MB/s 72.1MB/s 37.7MB/s
Fujifilm 310X 8GB 
35.2MB/s 35.2MB/s 75.5MB/s 37MB/s
Hagiwara Zpro 2GB 
7.4MB/s 6.8MB/s 15.1MB/s 7.7MB/s
Hama standard 2GB 
7.6MB/s 7MB/s Error 7.7MB/s
Hitachi Microdrive 4GB note
2.3MB/s 5.6MB/s 6.9MB/s 5.6MB/s
Hitachi Microdrive 6GB 
9.1MB/s 8.8MB/s 8.7MB/s 8.8MB/s
Hoodman PRO 150X-133X 2GB 
17.6MB/s 16.7MB/s 15.1MB/s 17.4MB/s
Hoodman PRO 150X-133X 4GB 
16.8MB/s 16.6MB/s Error 17.4MB/s
Hoodman RAW 280X 2GB 
40MB/s 39.7MB/s 40.1MB/s 40MB/s
Hoodman RAW 280X 4GB 
39.9MB/s 39.5MB/s 40.1MB/s 42.9MB/s
Hoodman RAW 280X 8GB 
39.8MB/s 39.7MB/s 40MB/s 42.7MB/s
Hoodman RAW 300X 8GB 
38.6MB/s 38.3MB/s 38.8MB/s 40MB/s
Hoodman RAW 300X (500,000 cycle) 8GB note
46MB/s 45.9MB/s 85.4MB/s 45.8MB/s
Hoodman RAW 300X (500,000 cycle) 16GB note
45.8MB/s 45.7MB/s 85.5MB/s 50.3MB/s
Hoodman RAW 675X 8GB 
61.9MB/s 61.4MB/s 76.2MB/s 53.5MB/s
Kingston Elite Pro 1GB 
2.8MB/s 4.1MB/s Error 5.6MB/s
Kingston Elite Pro 2GB 
10MB/s 9.1MB/s Error 9.5MB/s
Kingston Elite Pro 16GB 
31.2MB/s 30.8MB/s 31.5MB/s 32.3MB/s
Kingston standard 4GB note
21MB/s 20.7MB/s 21.1MB/s 21.7MB/s
Kingston standard 8GB note
35.5MB/s 35.4MB/s 34.8MB/s 38.4MB/s
Kingston Ultimate 100X 2GB 
19.7MB/s 19.5MB/s 38.7MB/s 19.8MB/s
Kingston Ultimate 100X 4GB 
19.8MB/s 19.7MB/s 38.7MB/s 19.9MB/s
Kingston Ultimate 133X 2GB 
17.5MB/s 16.6MB/s 15.1MB/s 17.6MB/s
Kingston Ultimate 133X 8GB 
16.8MB/s 16.6MB/s 15.1MB/s 17.5MB/s
Kingston Ultimate 266X 2GB 
39.3MB/s 39.5MB/s 39.6MB/s 39.9MB/s
Kingston Ultimate 266X 4GB 
39.6MB/s 39.7MB/s 39.9MB/s 39.7MB/s
Kingston Ultimate 266X 8GB 
39MB/s 38.7MB/s 39.7MB/s 39.6MB/s
Kingston Ultimate 600X 32GB 
63.1MB/s 62.4MB/s Error 53.6MB/s
Lexar 80X (1st ed.) 1GB note
6.8MB/s 6.8MB/s Error Error
Lexar 80X (3rd ed.) 1GB note
8.2MB/s 9.8MB/s Error Error
Lexar 80X (3rd ed.) 2GB note
8MB/s 9.7MB/s Error Error
Lexar 80X (3rd ed.) 4GB note
8MB/s 9.6MB/s Error Error
Lexar High-Speed 40X 1GB 
6.5MB/s 6.5MB/s Error Error
Lexar Platinum II 200X 8GB 
43.5MB/s 43MB/s 86.3MB/s 44.3MB/s
Lexar Platinum II 80X 16GB 
16.8MB/s 16.7MB/s Error 17.6MB/s
Lexar Professional 1000X 32GB 
98MB/s Not Tested Not Tested Not Tested
Lexar Professional 133X 2GB 
14.5MB/s 14.4MB/s Error 11.4MB/s
Lexar Professional 133X 4GB 
14.6MB/s 14.4MB/s Error 11.4MB/s
Lexar Professional 133X 8GB 
17.4MB/s 16.7MB/s 28.4MB/s 17.5MB/s
Lexar Professional 233X 4GB 
34.6MB/s 34.2MB/s 65.4MB/s 34.7MB/s
Lexar Professional 233X 8GB 
31.8MB/s 31.9MB/s 63.3MB/s 34.5MB/s
Lexar Professional 233X 16GB 
39.7MB/s 39.6MB/s 76.6MB/s 40MB/s
Lexar Professional 300X 4GB 
38.6MB/s 38.1MB/s 73.2MB/s 38.6MB/s
Lexar Professional 300X 8GB 
38.7MB/s 38.4MB/s 73.5MB/s 38.8MB/s
Lexar Professional 300X 16GB 
40.4MB/s 40.7MB/s 83.2MB/s 43.5MB/s
Lexar Professional 300X 32GB 
63.8MB/s 65.7MB/s 81.7MB/s 53MB/s
Lexar Professional 400X 8GB 
62.6MB/s 62.6MB/s 94MB/s 61.8MB/s
Lexar Professional 400X 16GB 
75.9MB/s 77.3MB/s 92.5MB/s 61.6MB/s
Lexar Professional 600X 8GB 
73MB/s 75.5MB/s 88.1MB/s 62MB/s
Lexar Professional 600X 16GB 
66MB/s 71.2MB/s 83.2MB/s 52.7MB/s
Lexar Professional 600X 32GB 
76MB/s 75.6MB/s 87MB/s 61.7MB/s
Maxell standard 2GB 
22.5MB/s 22.2MB/s 22.7MB/s Error
My Digital Discount 600X 64GB 
62.5MB/s 74MB/s 77.6MB/s Error
PhotoFast 533X 32GB 
Not Tested Not Tested 86.3MB/s 52.6MB/s
PhotoFast 533X 64GB 
66.3MB/s 70.2MB/s 83MB/s 52.9MB/s
PhotoFast 533X Plus 8GB note
Not Tested Not Tested 81.2MB/s 52.3MB/s
PhotoFast 533X Plus 16GB 
66.2MB/s 70.7MB/s 83.3MB/s 52.8MB/s
PhotoFast 533X Plus 32GB note
Not Tested Not Tested Error 52.7MB/s
PNY Opt. PRO UDMA (2007) 2GB 
38.3MB/s 37.9MB/s 38.7MB/s 38.4MB/s
PNY Opt. PRO UDMA (2007) 8GB 
38.6MB/s 38.3MB/s 39.1MB/s 38.7MB/s
PNY Optima 80X 1GB 
12MB/s 11.6MB/s 24MB/s 11.9MB/s
PNY Optima PRO UDMA 266X 4GB 
39.7MB/s 39.6MB/s 39.9MB/s 39.9MB/s
PNY Optima PRO UDMA 266X 8GB 
40.2MB/s 40.2MB/s 43.5MB/s 43.2MB/s
Pretec 333X 16GB 
40.2MB/s 14.3MB/s 43.5MB/s 12.2MB/s
Pretec 80X 2GB 
12.1MB/s 12MB/s 22.7MB/s 12.2MB/s
Ridata 80X PRO II 2GB 
12.3MB/s 12.2MB/s 24.3MB/s 12.3MB/s
Ridata Lightning 233X 16GB 
31.2MB/s 30.9MB/s 31.4MB/s 31.3MB/s
Ridata Lightning 600X 16GB 
72.7MB/s 73.9MB/s 46.3MB/s 61.7MB/s
Ridata Pro 150X 2GB 
17.5MB/s 16.7MB/s 28.8MB/s 17.6MB/s
Ridata Pro 150X 8GB 
16.7MB/s 15.9MB/s 28.6MB/s 16.8MB/s
Ridata PRO 52X 2GB 
2.8MB/s 4.1MB/s Error 5.6MB/s
Ridata Supreme 300X 4GB 
40MB/s 39.8MB/s 43.2MB/s 40.2MB/s
SanDisk Extreme 1GB 
10.6MB/s 9.6MB/s Error 11.1MB/s
SanDisk Extreme 2GB 
11MB/s 10.4MB/s Error 11.4MB/s
SanDisk Extreme 60MB/s 8GB 
27.1MB/s 64.1MB/s 61.9MB/s Error
SanDisk Extreme 60MB/s 16GB 
27MB/s 65.4MB/s 61.8MB/s Error
SanDisk Extreme 60MB/s 32GB 
27.3MB/s 65.8MB/s 62.1MB/s Error
SanDisk Extreme Ducati 4GB 
38.8MB/s 38MB/s 72.8MB/s 38.9MB/s
SanDisk Extreme Ducati 8GB 
38.7MB/s 38.1MB/s Error 38.7MB/s
SanDisk Extreme III 1GB 
16.7MB/s 16.4MB/s Error 11.8MB/s
SanDisk Extreme III 2GB 
16.7MB/s 16.4MB/s Error 16.8MB/s
SanDisk Extreme III 4GB note
16.6MB/s 16MB/s Error 16.7MB/s
SanDisk Extreme III 8GB 
16.6MB/s 15.9MB/s Error 16.8MB/s
SanDisk Extreme III 12GB 
15.9MB/s 15.9MB/s Error 16.7MB/s
SanDisk Extreme III 16GB 
15.9MB/s 15.9MB/s Error 16.7MB/s
SanDisk Extreme III 30MB/s Edition 4GB note
26.4MB/s 26.3MB/s 52.6MB/s 28.3MB/s
SanDisk Extreme III 30MB/s Edition 8GB note
26.4MB/s 26.1MB/s 52.6MB/s 26.4MB/s
SanDisk Extreme III 30MB/s Edition 16GB note
26.4MB/s 26.2MB/s 52.9MB/s 26.7MB/s
SanDisk Extreme III 30MB/s Edition 32GB 
28.9MB/s 28.8MB/s 60.4MB/s 31.3MB/s
SanDisk Extreme IV 2GB 
34.8MB/s 34.6MB/s Error 35.6MB/s
SanDisk Extreme IV 4GB 
34.7MB/s 34.6MB/s 71.1MB/s 35.5MB/s
SanDisk Extreme IV 8GB 
34.6MB/s 34.4MB/s 70.4MB/s 35.3MB/s
SanDisk Extreme IV 45MB/s Edition 4GB note
37.1MB/s 37.7MB/s 73.1MB/s 38.6MB/s
SanDisk Extreme IV 45MB/s Edition 8GB note
34.9MB/s 34.8MB/s 71.5MB/s 35.3MB/s
SanDisk Extreme IV 45MB/s Edition 16GB note
37.2MB/s 37.9MB/s 73MB/s 38.6MB/s
SanDisk Extreme Pro 16GB 
80.3MB/s 81.1MB/s 71.6MB/s Error
SanDisk Extreme Pro 32GB 
81.2MB/s 80.2MB/s 66.5MB/s Error
SanDisk Extreme Pro 64GB 
79.8MB/s 80.3MB/s 66.8MB/s Error
SanDisk Extreme Pro 128GB 
28.5MB/s 75.2MB/s 69.4MB/s Error
SanDisk standard 2GB note
11.4MB/s 12.2MB/s Error 11.8MB/s
SanDisk standard 4GB 
11.3MB/s 12.1MB/s Error 11.8MB/s
SanDisk Ultra 30MB/s 4GB 
34.8MB/s 34.4MB/s 77.8MB/s 40.4MB/s
SanDisk Ultra 30MB/s 8GB 
31.8MB/s 31.6MB/s 72.2MB/s 36.1MB/s
SanDisk Ultra 30MB/s 16GB 
29.8MB/s 29.9MB/s 67.2MB/s 35.5MB/s
SanDisk Ultra II 2GB 
10.9MB/s 9.9MB/s Error 11.3MB/s
SanDisk Ultra II 4GB 
10.9MB/s 10MB/s Error 11.3MB/s
SanDisk Ultra II 8GB 
11.3MB/s 12.1MB/s Error 11.8MB/s
Seagate Photo Hard Drive 8GB 
9.4MB/s 9.4MB/s 9.3MB/s 9.4MB/s
Shikatronics TurboF1 100X 2GB 
18.7MB/s 18.5MB/s 35.9MB/s 18.7MB/s
Transcend 120X 4GB 
16.7MB/s 15.9MB/s 28.6MB/s 16.8MB/s
Transcend 133X 16GB 
29MB/s 28.9MB/s 31.3MB/s 31.1MB/s
Transcend 133X 32GB 
38.8MB/s 38.3MB/s 39.8MB/s 39MB/s
Transcend 266X 2GB 
39.9MB/s 39.8MB/s 38.7MB/s 39.9MB/s
Transcend 266X 8GB 
39.4MB/s 39.3MB/s 35.6MB/s 39.6MB/s
Transcend 400X 16GB 
72.2MB/s 72.6MB/s 46.1MB/s 59.5MB/s
Transcend 45X 1GB 
8.2MB/s 7.4MB/s Error 8.4MB/s
Transcend 600X 8GB 
62MB/s 61.7MB/s 39.8MB/s 52.1MB/s
Transcend 600X 16GB 
65.7MB/s 65.7MB/s 44.9MB/s 52.6MB/s
Transcend 80X 1GB 
11.8MB/s 10.3MB/s Error 10.6MB/s
Transcend UDMA 300X 4GB 
40MB/s 39.8MB/s 42.9MB/s 40.1MB/s
Transcend UDMA 300X 8GB 
39.9MB/s 39.5MB/s 40MB/s 39.9MB/s
Transcend UDMA 300X 16GB 
45.4MB/s 44.9MB/s 45.6MB/s 45.7MB/s
TwinMOS Ultra-X 140X 2GB 
19.8MB/s 19.7MB/s 38.6MB/s 19.8MB/s

 

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