Product comparison · 2 internal hard drives

HP 459357R-B21 internal hard drive vs Seagate Momentus 750Gb SATA II

Key differences

HDD capacity
- 459357R-B21 internal hard drive:120 GB
- Momentus 750Gb SATA II:750 GB
HDD speed
- 459357R-B21 internal hard drive:5400 RPM
- Momentus 750Gb SATA II:7200 RPM
Interface
- 459357R-B21 internal hard drive:Serial ATA
- Momentus 750Gb SATA II:Serial ATA II
Width
- 459357R-B21 internal hard drive:110.7 mm
- Momentus 750Gb SATA II:69.8 mm
Depth
- 459357R-B21 internal hard drive:184.2 mm
- Momentus 750Gb SATA II:100.3 mm
Height
- 459357R-B21 internal hard drive:26.4 mm
- Momentus 750Gb SATA II:9.5 mm
Weight
- 459357R-B21 internal hard drive:1.36 kg
- Momentus 750Gb SATA II:115 g

Differences highlightedShow differences only

Comparison of 459357R-B21, Momentus 750Gb SATA II
18 specifications	A HP 459357R-B21 internal hard drive Model 459357R-B21 View product	B Seagate Momentus 750Gb SATA II View product
Features3 differ
HDD capacityDiffers	120 GB	750 GB
HDD speedDiffers	5400 RPM	7200 RPM
HDD size	2.5"	2.5"
InterfaceDiffers	Serial ATA	Serial ATA II
Component forKnown for one	Unknown — not stated by the source	Laptop
Storage drive buffer sizeKnown for one	Unknown — not stated by the source	16 MB
Read seek timeKnown for one	Unknown — not stated by the source	11 ms
Write seek timeKnown for one	Unknown — not stated by the source	13 ms
Average latencyKnown for one	Unknown — not stated by the source	4.2 ms
Poweridentical
Operating voltage	5 V	5 V
Operational conditionsidentical
Operating shockKnown for one	Unknown — not stated by the source	350 G
Weight & dimensions4 differ
WidthDiffers	110.7 mm	69.8 mm
DepthDiffers	184.2 mm	100.3 mm
HeightDiffers	26.4 mm	9.5 mm
WeightDiffers	1.36 kg	115 g
Other featuresidentical
InternalKnown for one	Unknown — not stated by the source	Yes
Hot-Plug supportKnown for one	No	Unknown — not stated by the source
Compatible productsKnown for one	ProLiant BL260c G5 ProLiant BL280c G6 ProLiant BL2x220c G5 ProLiant BL2x220c G6 ProLiant BL2x220c G7	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.