Product comparison · 2 internal solid state drives

Lenovo 4XB7A90881 internal solid state drive vs Lenovo 4XB7A90887 internal solid state drive

25specifications compared
5differ
20identical
9known for one product only

Key differences

The Lenovo 4XB7A90887 internal solid state drive has 1.92 TB more SSD capacity than the Lenovo 4XB7A90881 internal solid state drive (3.84 TB vs 1.92 TB). The Lenovo 4XB7A90881 internal solid state drive has 1" more SSD form factor than the Lenovo 4XB7A90887 internal solid state drive (3.5" vs 2.5"). The Lenovo 4XB7A90887 internal solid state drive has 2,500 IOPS more random write (4KB) than the Lenovo 4XB7A90881 internal solid state drive (30500 IOPS vs 28000 IOPS). Only the Lenovo 4XB7A90881 internal solid state drive has hardware encryption.

SSD capacity
- 4XB7A90881 internal solid state drive:1.92 TB
- 4XB7A90887 internal solid state drive:3.84 TB
SSD form factor
- 4XB7A90881 internal solid state drive:3.5"
- 4XB7A90887 internal solid state drive:2.5"
Hardware encryption
- 4XB7A90881 internal solid state drive:Yes
- 4XB7A90887 internal solid state drive:No
Random write (4KB)
- 4XB7A90881 internal solid state drive:28000 IOPS
- 4XB7A90887 internal solid state drive:30500 IOPS
Non-operating shock
- 4XB7A90881 internal solid state drive:20 G
- 4XB7A90887 internal solid state drive:1.5 G

Side by side

Differences highlightedShow differences only

Comparison of 4XB7A90881, 4XB7A90887
34 specifications	A Lenovo 4XB7A90881 internal solid state drive Model 4XB7A90881 View product	B Lenovo 4XB7A90887 internal solid state drive Model 4XB7A90887 View product
Features4 differ
SSD capacityDiffers	1.92 TB	3.84 TB
SSD form factorDiffers	3.5"	2.5"
Interface	Serial ATA III	Serial ATA III
NVMe	No	No
Memory type	V-NAND TLC	V-NAND TLC
Component for	Server/workstation	Server/workstation
Hardware encryptionDiffers	Yes	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)	82000 IOPS	82000 IOPS
Random write (4KB)Differs	28000 IOPS	30500 IOPS
S.M.A.R.T. support	Yes	Yes
ECCKnown for one	Yes	Unknown — not stated by the source
H/W PLP function	Yes	Yes
Hot-swapKnown for one	Yes	Unknown — not stated by the source
Uncorrectable Bit Error Rate (UBER)	< 1 per 10^17 bits read	< 1 per 10^17 bits read
Drive writes per day (DWPD)Known for one	1	Unknown — not stated by the source
Mean time between failures (MTBF)	2000000 h	2000000 h
Certification	UL TUV FCC CE Mark C-Tick Mark BSMI (Taiwan) KCC (Korea EMI)	UL TUV FCC CE Mark C-Tick Mark BSMI (Taiwan) KCC (Korea EMI)
End-to-End Data ProtectionKnown for one	Unknown — not stated by the source	Yes
Weight & dimensionsidentical
Width	70 mm	70 mm
Depth	100 mm	100 mm
Height	7 mm	7 mm
Operational conditions1 differ
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%
Operating shockKnown for one	1500 G	Unknown — not stated by the source
Non-operating shockDiffers	20 G	1.5 G
Maximum operating altitude	3050 m	3050 m
Non-operating vibrationKnown for one	Unknown — not stated by the source	20 G
Other featuresidentical
Sequential read/writeKnown for one	Yes	Unknown — not stated by the source
Sequential readingKnown for one	480 MB/s	Unknown — not stated by the source
Sequential writing speedKnown for one	460 MB/s	Unknown — not stated by the source

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.

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