A List of UHS-II SD Cards, Readers, and Cameras

2019-04-29 14:56:39

A list of UHS-II SD cards, readers, and cameras

For those of you not in the know, most current SD cards implement an Ultra High Speed bus (which is abbreviated UHS-I or UHS-1) because it is the 1st version of this bus. It has a maximum transfer rate of 104MB/sec. Since there are some cases which require higher transfer speeds, the SD card consortium has created a new bus called UHS-II (or UHS-2.) The difference is two-fold:

  1. UHS-II raises the maximum transfer rate up to 312MB/s.

  2. UHS-II uses an additional row of pins/contacts to get there.

uhs-i-vs-uhs-iiThis means that UHS-II cards can only be fully utilized if the device using it has physical support for these extra pins/contacts. If the device does not have these extra pins (and that’s pretty much all devices as of 2014), then the SD card will fall back to UHS-I mode.

SD Cards that support UHS-II

SanDisk Extreme PRO (280MB/s) 16GB32GB, and64GB.Oddly enough, SanDisk has another SD card called the Extreme Pro which only achieves 95MB/s, but *this* card (with a capital “PRO”) achieves a 280MB/s read speed and a write speed of 250MB/s.
Lexar Professional 1000xLexar says: Up to 150MB/s read transfer, write speeds lower.
Lexar Professional 2000xLexar says: Up to 300MB/s read transfer, write speeds lower.
Panasonic MicroP2 32GBand 64GBPanasonic says: High speed transfer of 2.0 Gbps (~240MB/s.) Guaranteed data writing up to AVC-ULTRA Class200 mode.
Toshiba Exceria UHS-IIToshiba says: 260MB/s read, 120MB/s write.

SD Readers that support UHS-II

Kingston MobileLite G4The Kingston MobileLite G4 was benchmarked against 2 other portable USB 3.0 SD card readers and came out with top marks. Definitely a great value at ~$10.
SanDisk Extreme PRO ReaderNot sure why this card reader costs $40. Perhaps since UHS-II cards cost so much right now, SanDisk thought it could charge a premium for the reader, too.

Digital Cameras and DSLRs that support UHS-II

Fujifilm X-T1A 16MP compact mirrorless digital camera which uses an APS-C sensor which is getting rave reviews right now for both its size and quality. UHS-II cards allow the X-T1 camera to perform up to 25% faster (according to this video.)
Panasonic Lumix GH4A 16MP mirrorless digital camera which is fast becoming popular for being a highly portable 4K video camera as well. The UHS-II support helps it to record 4K video without dropping frames.
Samsung NX-1A 28MP Back Side Illuminated APS-C Sensor which can shoot at sustained 15 fps at full 28MP resolution (using UHS-II SD cards, of course.)