HP 443902-001 optical disc drive Internal vs Lenovo 40Y8637 optical disc drive

Comparison of 443902-001, 40Y8637

11 specifications	A HP 443902-001 optical disc drive Internal Model 443902-001 View product	B Lenovo 40Y8637 optical disc drive Model 40Y8637 View product
Design1 differ
InternalDiffers	Yes	No
Performanceidentical
InterfaceKnown for one	EIDE/ATA	—Unknown — not stated by the source
Compatible productsKnown for one	Compaq 6510b, 6515b, 6710b, 6715b, 8510w	—Unknown — not stated by the source
Drive device, buffer sizeKnown for one	—Unknown — not stated by the source	2 MB
Reading speedidentical
DVD read speedKnown for one	8x	—Unknown — not stated by the source
DVD-ROM read speedKnown for one	—Unknown — not stated by the source	8x
Access timeidentical
DVD drive average random access timeKnown for one	125 ms	—Unknown — not stated by the source
CD-ROM drive average random access timeKnown for one	116 ms	—Unknown — not stated by the source
Writing speedidentical
CD write speedKnown for one	—Unknown — not stated by the source	24x
CD rewrite speedKnown for one	—Unknown — not stated by the source	24x

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.