Compare any two Solid State Drives:


SanDisk Extreme Pro 240GB vs X400 128GB

Display Graphs

Hide Graphs

Specification Charts


Extreme Pro 240GB 240 GB
X400 128GB 128 GB
Difference: 112 (88%)

Random Read

Extreme Pro 240GB 100000 IOPS
X400 128GB 93500 IOPS
Difference: 6500 (7%)

Random Write

Extreme Pro 240GB 90000 IOPS
X400 128GB 60000 IOPS
Difference: 30000 (50%)

Sequential Read

Extreme Pro 240GB 550 MB/sec
X400 128GB 540 MB/sec
Difference: 10 (2%)

Sequential Write

Extreme Pro 240GB 520 MB/sec
X400 128GB 340 MB/sec
Difference: 180 (53%)


Extreme Pro 240GB 80 TB
X400 128GB 72 TB
Difference: 8 (11%)


Display Specifications

Hide Specifications

Model Extreme Pro 240GB X400 128GB
Manufacturer SanDisk SanDisk
NAND SanDisk 2nd Generation 64Gbit 19nm MLC TLC NAND
Form Factor 2.5" 2.5"
Capacity 240 GB 128 GB
Cache 512 MB (N/A) MB
Sequential Read 550 MB/s 540 MB/s
Sequential Write 520 MB/s 340 MB/s
Random Read 100000 IOPS 93500 IOPS
Random Write 90000 IOPS 60000 IOPS
Interface SATA III 6Gb/s SATA III 6Gb/s
Controller Marvell 88SS9187 Marvell 88SS1074
Date Released 2014 2016
Endurance 80 TB 72 TB
Notes 10 Year Warranty Warranty 5 years

Price Comparison

Display Prices

Hide Prices

Extreme Pro 240GB

Check prices at:

X400 128GB

Check prices at:

Please note that the price comparisons are based on search keywords - sometimes it might show cards with very similar names that are not exactly the same as the one chosen in the comparison. We do try to filter out the wrong results as best we can, though.