Product comparison · 2 internal hard drives

HP 500GB SATA 3G 7200rpm NCQ vs HP 500GB SATA NCQ HDD SMART IV 3.5" 2nd HDD

Key differences

Interface: Serial ATA II on the HP 500GB SATA 3G 7200rpm NCQ, Serial ATA on the HP 500GB SATA NCQ HDD SMART IV 3.5" 2nd HDD.

Interface
- 500GB SATA 3G 7200rpm NCQ:Serial ATA II
- 500GB SATA NCQ HDD SMART IV 3.5" 2nd HDD:Serial ATA

Differences highlightedShow differences only

Comparison of 500GB SATA 3G 7200rpm NCQ, 500GB SATA NCQ HDD SMART IV 3.5" 2nd HDD
10 specifications	A HP 500GB SATA 3G 7200rpm NCQ View product	B HP 500GB SATA NCQ HDD SMART IV 3.5" 2nd HDD View product
Features1 differ
InterfaceDiffers	Serial ATA II	Serial ATA
TypeKnown for one	HDD	Unknown — not stated by the source
HDD interface transfer rateKnown for one	3 Gbit/s	Unknown — not stated by the source
Native Command Queuing (NCQ)Known for one	Yes	Unknown — not stated by the source
HDD sizeKnown for one	Unknown — not stated by the source	3.5"
Other featuresidentical
Windows operating systems supportedKnown for one	Yes	Unknown — not stated by the source
Poweridentical
Operating voltageKnown for one	Unknown — not stated by the source	5 / 12 V

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.