Product comparison · 2 internal solid state drives

Lenovo 4XB7B01881 internal solid state drive vs Lenovo LN950 4 TB M.2 PCI Express 4.0 NVMe

16specifications compared
13differ
3identical
19known for one product only

Key differences

SSD capacity
- 4XB7B01881 internal solid state drive:6.4 TB
- LN950 4 TB M.2 PCI Express 4.0 NVMe:4 TB
SSD form factor
- 4XB7B01881 internal solid state drive:U.2
- LN950 4 TB M.2 PCI Express 4.0 NVMe:M.2
Component for
- 4XB7B01881 internal solid state drive:Server/workstation
- LN950 4 TB M.2 PCI Express 4.0 NVMe:PC/Notebook/Game console
Mean time between failures (MTBF)
- 4XB7B01881 internal solid state drive:2000000 h
- LN950 4 TB M.2 PCI Express 4.0 NVMe:1500000 h
Power consumption (read)
- 4XB7B01881 internal solid state drive:18 W
- LN950 4 TB M.2 PCI Express 4.0 NVMe:3.7 W
Power consumption (write)
- 4XB7B01881 internal solid state drive:18 W
- LN950 4 TB M.2 PCI Express 4.0 NVMe:4.4 W
Width
- 4XB7B01881 internal solid state drive:70 mm
- LN950 4 TB M.2 PCI Express 4.0 NVMe:80 mm
Depth
- 4XB7B01881 internal solid state drive:100 mm
- LN950 4 TB M.2 PCI Express 4.0 NVMe:22 mm

Side by side

Differences highlightedShow differences only

Comparison of 4XB7B01881, LN950
35 specifications	A Lenovo 4XB7B01881 internal solid state drive Model 4XB7B01881 View product	B Lenovo LN950 4 TB M.2 PCI Express 4.0 NVMe Model LN950 View product
Features5 differ
SSD capacityDiffers	6.4 TB	4 TB
SSD form factorDiffers	U.2	M.2
Interface	PCI Express 4.0	PCI Express 4.0
NVMe	Yes	Yes
Memory typeKnown for one	TLC 3D NAND	Unknown — not stated by the source
Component forDiffers	Server/workstation	PC/Notebook/Game console
Hardware encryptionKnown for one	Yes	Unknown — not stated by the source
Random read (4KB)Known for one	1100000 IOPS	Unknown — not stated by the source
Random write (4KB)Known for one	390000 IOPS	Unknown — not stated by the source
Read latencyKnown for one	75 µs	Unknown — not stated by the source
Write latencyKnown for one	15 µs	Unknown — not stated by the source
Hot-swapKnown for one	Yes	Unknown — not stated by the source
Uncorrectable Bit Error Rate (UBER)Known for one	< 1 per 10^17 bits read	Unknown — not stated by the source
Drive writes per day (DWPD)Known for one	3	Unknown — not stated by the source
Mean time between failures (MTBF)Differs	2000000 h	1500000 h
CertificationDiffers	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	CE, UKCA, RCM, BSMI, KC, RoHS, CB, VCCI, WHQL
NVMe versionKnown for one	Unknown — not stated by the source	2.0
M.2 SSD sizeKnown for one	Unknown — not stated by the source	2280 (22 x 80 mm)
Read speedKnown for one	Unknown — not stated by the source	6400 MB/s
Write speedKnown for one	Unknown — not stated by the source	7200 MB/s
TRIM supportKnown for one	Unknown — not stated by the source	Yes
ECCKnown for one	Unknown — not stated by the source	Yes
Protection featuresKnown for one	Unknown — not stated by the source	Temperature proof
Power2 differ
Power consumption (read)Differs	18 W	3.7 W
Power consumption (write)Differs	18 W	4.4 W
Weight & dimensions4 differ
WidthDiffers	70 mm	80 mm
DepthDiffers	100 mm	22 mm
HeightDiffers	15 mm	2.4 mm
WeightDiffers	146 g	10 g
Operational conditions2 differ
Operating temperature (T-T)	0 - 70 °C	0 - 70 °C
Operating relative humidity (H-H)Known for one	5 - 95%	Unknown — not stated by the source
Operating vibrationDiffers	2.17 G	3.1 G
Operating shockDiffers	1000 G	100 G
Maximum operating altitudeKnown for one	3048 m	Unknown — not stated by the source
Storage temperature (T-T)Known for one	Unknown — not stated by the source	-40 - 85 °C

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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