Product comparison · 2 optical disc drives

HP 685419-001 optical disc drive Internal DVD-ROM Black vs HP B4F70AA optical disc drive Internal Blu-Ray RW Black

Key differences

Purpose
- 685419-001 optical disc drive Internal DVD-ROM Black:Laptop
- B4F70AA optical disc drive Internal Blu-Ray RW Black:Desktop
Optical drive type
- 685419-001 optical disc drive Internal DVD-ROM Black:DVD-ROM
- B4F70AA optical disc drive Internal Blu-Ray RW Black:Blu-Ray RW
CD read speed
- 685419-001 optical disc drive Internal DVD-ROM Black:24x
- B4F70AA optical disc drive Internal Blu-Ray RW Black:40x
DVD-ROM read speed
- 685419-001 optical disc drive Internal DVD-ROM Black:8x
- B4F70AA optical disc drive Internal Blu-Ray RW Black:16x

Differences highlightedShow differences only

Comparison of 685419-001, B4F70AA
18 specifications	A HP 685419-001 optical disc drive Internal DVD-ROM Black Model 685419-001 View product	B HP B4F70AA optical disc drive Internal Blu-Ray RW Black Model B4F70AA View product
Designidentical
Internal	Yes	Yes
Product colour	Black	Black
Performance2 differ
PurposeDiffers	Laptop	Desktop
Optical drive typeDiffers	DVD-ROM	Blu-Ray RW
Interface	Serial ATA	Serial ATA
LightScribeKnown for one	Unknown — not stated by the source	No
Compatible productsKnown for one	EliteBook 2570p	Unknown — not stated by the source
Writing speedidentical
CD write speedKnown for one	Unknown — not stated by the source	40x
CD rewrite speedKnown for one	Unknown — not stated by the source	40x
BD-R write speedKnown for one	Unknown — not stated by the source	8x
DVD+RW write speedKnown for one	Unknown — not stated by the source	10x
DVD-R write speedKnown for one	Unknown — not stated by the source	16x
Reading speed2 differ
CD read speedDiffers	24x	40x
BD-ROM read speedKnown for one	Unknown — not stated by the source	8x
DVD-ROM read speedDiffers	8x	16x
Weight & dimensionsidentical
WeightKnown for one	Unknown — not stated by the source	950 g
Access timeidentical
DVD drive average random access timeKnown for one	160 ms	Unknown — not stated by the source
CD-ROM drive average random access timeKnown for one	140 ms	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.