Which drive did I buy?


#1

Last night I bought a WD Green 2TB at Best Buy.  On the box it says the model number is WDBAAY0020HNC-NRSN, but the WD Data Lifeguard Diagnostics program says it’s a WDC WD20 EARS-00MVWBO.  I’m just curious which drive it is so I can view the specs.  I want to know if it has 32MB or 64MB cache and what the RPM is of the drive.


#2

WDBAAY0020HNC is probably just the product number for the complete retail package. The actual model number is on the drive’s label and would be correctly reported by DLG.


#3

This is replacing two WD 500GB Caviar 16 drives that I bought just over 3 years ago.  It will be used for backup only.  I use a 300GB 10K RPM Velociraptor for my boot drive with Windows 7 Ultimate x64.

So, is this 32mb or 64mb cache?


#4

You can infer the specs of the WD20EARS from its model number.

WD Model Numbers - WD Internal Drives:
http://www.wdc.com/wdproducts/library/other/2579-001028.pdf

Your drive is a 3.5" (E), Desktop Caviar (A), 5400 RPM, 64MB cache ®, SATA 3Gbps (S).

There is also the following document.

WD Caviar Green Series Disti Spec Sheet:
http://www.wdc.com/wdproducts/library/specsheet/eng/2879-701229.pdf


#5

Thanks, that was very helpful.