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The WD Caviar SE16 400 GB Gets Ready to Face The World
Regular WD UltraATA drives are named based on their capacity followed by either the suffix BB (indicating 2 MB cache) or JB (8 MB). Serial ATA models are given the suffix JD ; they all feature 8 MB cache. If you come across a drive labeled JS, this is a SATA II model with 8 MB cache memory. Should you want the 16 MB cache option, it is a KS breed you need to look for.
Swipe to scroll horizontally
Caviar Drive Suffix
Cache
Interface
BB
2 MB
UltraATA/100
JB
8 MB
UltraATA/100
SB (RAID Edition)
8 MB
Ultra ATA/100
JD
8 MB
Serial ATA/150
SD (RAID Edition)
8 MB
Serial ATA/150
JS
8 MB
Serial ATA/300
KS
16 MB
Serial ATA/300
YR (RAID Edition 2)
16 MB
Serial ATA/150 NCQ
The only suffix which is not part of this list is GD, which is used for the 10,000 RPM Raptor family drives, featuring 8 MB cache and the Serial ATA/150 interface.
Patrick Schmid was the editor-in-chief for Tom's Hardware from 2005 to 2006. He wrote numerous articles on a wide range of hardware topics, including storage, CPUs, and system builds.
