Product comparison · 2 internal solid state drives

Dell 345-BGNK internal solid state drive vs Lenovo 4XB7A90881 internal solid state drive

7specifications compared
5differ
2identical
28known for one product only

Key differences

The Lenovo 4XB7A90881 internal solid state drive has 0.32 TB more SSD capacity than the Dell 345-BGNK internal solid state drive (1.92 TB vs 1.6 TB). The Lenovo 4XB7A90881 internal solid state drive has 1" more SSD form factor than the Dell 345-BGNK internal solid state drive (3.5" vs 2.5"). The Dell 345-BGNK internal solid state drive has 18 Gbit/s more data transfer rate than the Lenovo 4XB7A90881 internal solid state drive (24 Gbit/s vs 6 Gbit/s). Interface: SAS on the Dell 345-BGNK internal solid state drive, Serial ATA III on the Lenovo 4XB7A90881 internal solid state drive.

SSD capacity
- 345-BGNK internal solid state drive:1.6 TB
- 4XB7A90881 internal solid state drive:1.92 TB
SSD form factor
- 345-BGNK internal solid state drive:2.5"
- 4XB7A90881 internal solid state drive:3.5"
Interface
- 345-BGNK internal solid state drive:SAS
- 4XB7A90881 internal solid state drive:Serial ATA III
Data transfer rate
- 345-BGNK internal solid state drive:24 Gbit/s
- 4XB7A90881 internal solid state drive:6 Gbit/s
Drive writes per day (DWPD)
- 345-BGNK internal solid state drive:3
- 4XB7A90881 internal solid state drive:1

Side by side

Differences highlightedShow differences only

Comparison of 345-BGNK, 4XB7A90881
35 specifications	A Dell 345-BGNK internal solid state drive Model 345-BGNK View product	B Lenovo 4XB7A90881 internal solid state drive Model 4XB7A90881 View product
Features5 differ
SSD capacityDiffers	1.6 TB	1.92 TB
SSD form factorDiffers	2.5"	3.5"
InterfaceDiffers	SAS	Serial ATA III
NVMeKnown for one	Unknown — not stated by the source	No
Memory typeKnown for one	Unknown — not stated by the source	V-NAND TLC
Component for	Server/workstation	Server/workstation
Hardware encryption	Yes	Yes
Data transfer rateDiffers	24 Gbit/s	6 Gbit/s
Read speedKnown for one	Unknown — not stated by the source	480 MB/s
Write speedKnown for one	Unknown — not stated by the source	460 MB/s
Random read (4KB)Known for one	Unknown — not stated by the source	82000 IOPS
Random write (4KB)Known for one	Unknown — not stated by the source	28000 IOPS
S.M.A.R.T. supportKnown for one	Unknown — not stated by the source	Yes
ECCKnown for one	Unknown — not stated by the source	Yes
H/W PLP functionKnown for one	Unknown — not stated by the source	Yes
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)Differs	3	1
Mean time between failures (MTBF)Known for one	Unknown — not stated by the source	2000000 h
CertificationKnown for one	Unknown — not stated by the source	UL TUV FCC CE Mark C-Tick Mark BSMI (Taiwan) KCC (Korea EMI)
Target workloadKnown for one	Mixed Use (MU)	Unknown — not stated by the source
Bytes per sectorKnown for one	512e	Unknown — not stated by the source
Hot-Plug supportKnown for one	Yes	Unknown — not stated by the source
Weight & dimensionsidentical
WidthKnown for one	Unknown — not stated by the source	70 mm
DepthKnown for one	Unknown — not stated by the source	100 mm
HeightKnown for one	Unknown — not stated by the source	7 mm
Operational conditionsidentical
Operating temperature (T-T)Known for one	Unknown — not stated by the source	0 - 70 °C
Storage temperature (T-T)Known for one	Unknown — not stated by the source	-40 - 85 °C
Operating relative humidity (H-H)Known for one	Unknown — not stated by the source	5 - 95%
Operating shockKnown for one	Unknown — not stated by the source	1500 G
Non-operating shockKnown for one	Unknown — not stated by the source	20 G
Maximum operating altitudeKnown for one	Unknown — not stated by the source	3050 m
Other featuresidentical
Sequential read/writeKnown for one	Unknown — not stated by the source	Yes
Sequential readingKnown for one	Unknown — not stated by the source	480 MB/s
Sequential writing speedKnown for one	Unknown — not stated by the source	460 MB/s

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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