Product comparison · 2 internal solid state drives

Lenovo 4XB7B04139 internal solid state drive vs Lenovo 4XB7B04144 internal solid state drive

Key differences

SSD capacity
- 4XB7B04139 internal solid state drive:960 GB
- 4XB7B04144 internal solid state drive:1.92 TB
SSD form factor
- 4XB7B04139 internal solid state drive:2.5"
- 4XB7B04144 internal solid state drive:3.5"
Random read (4KB)
- 4XB7B04139 internal solid state drive:81000 IOPS
- 4XB7B04144 internal solid state drive:82000 IOPS

Differences highlightedShow differences only

Comparison of 4XB7B04139, 4XB7B04144
20 specifications	A Lenovo 4XB7B04139 internal solid state drive Model 4XB7B04139 View product	B Lenovo 4XB7B04144 internal solid state drive Model 4XB7B04144 View product
Features3 differ
SSD capacityDiffers	960 GB	1.92 TB
SSD form factorDiffers	2.5"	3.5"
Interface	Serial ATA III	Serial ATA III
NVMe	No	No
Component for	Server/workstation	Server/workstation
Hardware encryption	No	No
Data transfer rate	6 Gbit/s	6 Gbit/s
Read speed	480 MB/s	480 MB/s
Write speed	460 MB/s	460 MB/s
Random read (4KB)Differs	81000 IOPS	82000 IOPS
Random write (4KB)	28000 IOPS	28000 IOPS
Uncorrectable Bit Error Rate (UBER)	< 1 per 10^17 bits read	< 1 per 10^17 bits read
Mean time between failures (MTBF)	2000000 h	2000000 h
Operational conditionsidentical
Operating temperature (T-T)	0 - 70 °C	0 - 70 °C
Storage temperature (T-T)	-40 - 85 °C	-40 - 85 °C
Operating relative humidity (H-H)	5 - 95%	5 - 95%
Storage relative humidity (H-H)	5 - 95%	5 - 95%
Non-operating vibration	20 G	20 G
Non-operating shock	1500 G	1500 G
Maximum operating altitude	3050 m	3050 m

A dash means the value is not stated by the source. Unknown values are never counted for or against a product, and there is no overall score.