Product comparison · 2 internal solid state drives

Lenovo 4XB1T87551 internal solid state drive vs Lenovo 4XB7B01881 internal solid state drive

12specifications compared
8differ
4identical
23known for one product only

Key differences

SSD capacity
- 4XB1T87551 internal solid state drive:512 GB
- 4XB7B01881 internal solid state drive:6.4 TB
SSD form factor
- 4XB1T87551 internal solid state drive:M.2
- 4XB7B01881 internal solid state drive:U.2
Component for
- 4XB1T87551 internal solid state drive:PC
- 4XB7B01881 internal solid state drive:Server/workstation
Width
- 4XB1T87551 internal solid state drive:80 mm
- 4XB7B01881 internal solid state drive:70 mm
Depth
- 4XB1T87551 internal solid state drive:22 mm
- 4XB7B01881 internal solid state drive:100 mm
Height
- 4XB1T87551 internal solid state drive:2.38 mm
- 4XB7B01881 internal solid state drive:15 mm
Weight
- 4XB1T87551 internal solid state drive:9 g
- 4XB7B01881 internal solid state drive:146 g

Side by side

Differences highlightedShow differences only

Comparison of 4XB1T87551, 4XB7B01881
35 specifications	A Lenovo 4XB1T87551 internal solid state drive Model 4XB1T87551 View product	B Lenovo 4XB7B01881 internal solid state drive Model 4XB7B01881 View product
Features4 differ
SSD capacityDiffers	512 GB	6.4 TB
SSD form factorDiffers	M.2	U.2
Memory typeKnown for one	Unknown — not stated by the source	TLC 3D NAND
Component forDiffers	PC	Server/workstation
Hardware encryptionKnown for one	Unknown — not stated by the source	Yes
Random read (4KB)Known for one	Unknown — not stated by the source	1100000 IOPS
Random write (4KB)Known for one	Unknown — not stated by the source	390000 IOPS
Read latencyKnown for one	Unknown — not stated by the source	75 µs
Write latencyKnown for one	Unknown — not stated by the source	15 µs
Hot-swapKnown for one	Unknown — not stated by the source	Yes
Uncorrectable Bit Error Rate (UBER)Known for one	Unknown — not stated by the source	< 1 per 10^17 bits read
Drive writes per day (DWPD)Known for one	Unknown — not stated by the source	3
Mean time between failures (MTBF)Known for one	Unknown — not stated by the source	2000000 h
CertificationDiffers	BSMI FCC ICES VCCI UK DoC KCC RCM EMC CB Morocco DoC	FCC Title 47, Part 15B, Class B CA/CSA-CEI/IEC CISPR 22:02 EN 55024: 1998 EN 55022: 2006 EN-60950-1 2nd Edition UL/CSA EN-60950-1 2nd Edition Low Voltage Directive 2006/95/EC C-Tick: AS/NZS3584 BSMI: CNS 13438 KCC Article 11.1 RoHS DIRECTIVE 2011/65/EU WEEE Directive 2002/96/EC
Read speedKnown for one	3500 MB/s	Unknown — not stated by the source
Write speedKnown for one	2500 MB/s	Unknown — not stated by the source
Windows operating systems supportedKnown for one	Windows 11	Unknown — not stated by the source
Poweridentical
Power consumption (read)Known for one	Unknown — not stated by the source	18 W
Power consumption (write)Known for one	Unknown — not stated by the source	18 W
Weight & dimensions4 differ
WidthDiffers	80 mm	70 mm
DepthDiffers	22 mm	100 mm
HeightDiffers	2.38 mm	15 mm
WeightDiffers	9 g	146 g
Operational conditionsidentical
Operating vibrationKnown for one	Unknown — not stated by the source	2.17 G
Operating shockKnown for one	Unknown — not stated by the source	1000 G
Maximum operating altitudeKnown for one	Unknown — not stated by the source	3048 m
Packaging dataidentical
Package widthKnown for one	177 mm	Unknown — not stated by the source
Package depthKnown for one	144 mm	Unknown — not stated by the source
Package heightKnown for one	53 mm	Unknown — not stated by the source
Package weightKnown for one	71 g	Unknown — not stated by the source
Package typeKnown for one	Box	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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