CARDSPEED - Card Readers and Memory Cards

SanDisk Extreme Pro SDHC UHS-I 32GB

Specifications

Model: SanDisk Extreme Pro SDHC UHS-I 32GB  Up to 45MB/s 300X read/write
ID: SDSDXP1-032G-X46, 80-56-09282-032G, 6 19659 06475 4
Serial Number:BM1034716259G
Interface: UHS-I UHS50
Speed Classes:UHS-1
Size: 31 914 983 424 Bytes ~ 30436MB ~ 29.72GB
Sectors: 62 333 952 Sectors

Test Results  Read  Write
JMicron JMB389 PCIe x1  45.48MB/s 310x  44.13MB/s 301x
 Special Tests  

SDXC to ExpressCard PCIe x1 Adapter

The test setup:
SanDisk Extreme Pro SDHC UHS-I 32GB (SDSDXP1-032G-X46)
JMicron JMB389 SDXC ExpressCard 34 Test Board
ExpressCard to PCIe x1 Adapter
Read/Write directly from/to the media, no filesystem involved
Read/Write rates taken with a sample size of 4MB, 7610 samples

The test showed an average rate of 45.48MB/s (310x) read and 44.13MB/s (301x) write.

The write graph (white) shows a lot of short drops in the write rate. The blue line indicates the linear average of the write values.

Special Tests

See the  Explanations for the Special Tests  for details regarding the test procedure.

Hans-Jürgen Reggel   ·   http://www.hjreggel.net/cardspeed/   ·   2011-02-10 ~ 2011-02-12