Product comparison · 2 internal hard drives

HP EV178AV internal hard drive vs HP EV209AV internal hard drive

12specifications compared
9differ
3identical
1known for one product only

Key differences

The HP EV209AV internal hard drive has 354 GB more HDD capacity than the HP EV178AV internal hard drive (500 GB vs 146 GB). The HP EV178AV internal hard drive has 2,800 RPM more HDD speed than the HP EV209AV internal hard drive (10000 RPM vs 7200 RPM). The HP EV209AV internal hard drive has 5 ms more average seek time than the HP EV178AV internal hard drive (9 ms vs 4 ms). Only the HP EV209AV internal hard drive has internal. Interface: SAS on the HP EV178AV internal hard drive, Serial ATA on the HP EV209AV internal hard drive.

HDD capacity
- EV178AV internal hard drive:146 GB
- EV209AV internal hard drive:500 GB
HDD speed
- EV178AV internal hard drive:10000 RPM
- EV209AV internal hard drive:7200 RPM
Interface
- EV178AV internal hard drive:SAS
- EV209AV internal hard drive:Serial ATA
Average seek time
- EV178AV internal hard drive:4 ms
- EV209AV internal hard drive:9 ms
Width
- EV178AV internal hard drive:110.7 mm
- EV209AV internal hard drive:101.6 mm
Depth
- EV178AV internal hard drive:188.7 mm
- EV209AV internal hard drive:146 mm
Height
- EV178AV internal hard drive:25.4 mm
- EV209AV internal hard drive:26.1 mm
Dimensions (WxDxH)
- EV178AV internal hard drive:188.74 x 188.74 x 25.4 mm
- EV209AV internal hard drive:101.6 x 146 x 26.11 mm

Side by side

Differences highlightedShow differences only

Comparison of EV178AV, EV209AV
13 specifications	A HP EV178AV internal hard drive Model EV178AV View product	B HP EV209AV internal hard drive Model EV209AV View product
Features4 differ
HDD capacityDiffers	146 GB	500 GB
HDD speedDiffers	10000 RPM	7200 RPM
HDD size	3.5"	3.5"
InterfaceDiffers	SAS	Serial ATA
Average seek timeDiffers	4 ms	9 ms
Poweridentical
Operating voltage	5 / 12 V	5 / 12 V
Weight & dimensions3 differ
WidthDiffers	110.7 mm	101.6 mm
DepthDiffers	188.7 mm	146 mm
HeightDiffers	25.4 mm	26.1 mm
Other features2 differ
HDD transfer rate	300 Mbit/s	300 Mbit/s
Dimensions (WxDxH)Differs	188.74 x 188.74 x 25.4 mm	101.6 x 146 x 26.11 mm
Product colourKnown for one	Unknown — not stated by the source	Black
InternalDiffers	No	Yes

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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