Compare any two Solid State Drives:


SanDisk Ultra II 480GB vs X400 128GB

Display Graphs

Hide Graphs

Specification Charts


Ultra II 480GB 480 GB
X400 128GB 128 GB
Difference: 352 (275%)

Random Read

Ultra II 480GB 98000 IOPS
X400 128GB 93500 IOPS
Difference: 4500 (5%)

Random Write

Ultra II 480GB 83000 IOPS
X400 128GB 60000 IOPS
Difference: 23000 (38%)

Sequential Read

Ultra II 480GB 550 MB/sec
X400 128GB 540 MB/sec
Difference: 10 (2%)

Sequential Write

Ultra II 480GB 500 MB/sec
X400 128GB 340 MB/sec
Difference: 160 (47%)


Ultra II 480GB 218 TB
X400 128GB 72 TB
Difference: 146 (203%)


Display Specifications

Hide Specifications

Model Ultra II 480GB X400 128GB
Manufacturer SanDisk SanDisk
NAND SanDisk 2nd Gen 128Gbit 19nm TLC TLC NAND
Form Factor 2.5" 2.5"
Capacity 480 GB 128 GB
Cache 20480 MB (N/A) MB
Sequential Read 550 MB/s 540 MB/s
Sequential Write 500 MB/s 340 MB/s
Random Read 98000 IOPS 93500 IOPS
Random Write 83000 IOPS 60000 IOPS
Interface SATA III 6Gb/s SATA III 6Gb/s
Controller Marvell 88SS9189 Marvell 88SS1074
Date Released 2014 2016
Endurance 218 TB 72 TB
Notes 3 Year Warranty Warranty 5 years

Price Comparison

Display Prices

Hide Prices

Ultra II 480GB

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.