Product comparison · 2 internal solid state drives

HP 741142-B21#0D1 vs HP 1TB Solid State Drive

Key differences

Differences highlightedShow differences only

Comparison of 741142-B21#0D1, M550
18 specifications	A HP 741142-B21#0D1 Model 741142-B21#0D1 View product	B HP 1TB Solid State Drive Model M550 View product
Features4 differ
SSD capacityDiffers	400 GB	1 TB
SSD form factor	2.5"	2.5"
InterfaceDiffers	SAS	Serial ATA III
Data transfer rateDiffers	12 Gbit/s	6 Gbit/s
Read speedDiffers	1000 MB/s	550 MB/s
Write speedKnown for one	625 MB/s	Unknown — not stated by the source
Random read (4KB)Known for one	86000 IOPS	Unknown — not stated by the source
Random write (4KB)Known for one	58000 IOPS	Unknown — not stated by the source
Bytes per sectorKnown for one	512	Unknown — not stated by the source
Memory typeKnown for one	Unknown — not stated by the source	MLC
HP segmentKnown for one	Unknown — not stated by the source	Business
Poweridentical
Power consumption (read)Known for one	9 W	Unknown — not stated by the source
Power consumption (write)Known for one	9 W	Unknown — not stated by the source
Weight & dimensionsidentical
HeightKnown for one	15 mm	Unknown — not stated by the source
Operational conditionsidentical
Operating temperature (T-T)Known for one	0 - 60 °C	Unknown — not stated by the source
Storage temperature (T-T)Known for one	-40 - 55 °C	Unknown — not stated by the source
Other featuresidentical
Internal	Yes	Yes
Logistics dataidentical
Harmonized System (HS) codeKnown for one	Unknown — not stated by the source	84717070

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.