For those that enjoy the finer things in life, but would rather not pay a fortune.

 

Look here

 

(It doesn't say "black", but search for the model number and you'll see it is.  Non-AF version.)

This is probably the BLUE series. The Black series has 64MB cache.

 

****Very strange here. According to WD's website they don't make a 32MB cache 2TB drive that is 3GB/sec.

 

        WD2002FAEX SATA 6 Gb/s 3.5 Inch 7200 2 TB 64 MB

WD1502FAEX SATA 6 Gb/s 3.5 Inch 7200 1.5 TB 64 MB

WD1002FAEX SATA 6 Gb/s 3.5 Inch 7200 1 TB 64 MB

WD7502AAEX SATA 6 Gb/s 3.5 Inch 7200 750 GB 64 MB

WD6402AAEX SATA 6 Gb/s 3.5 Inch 7200 640 GB 64 MB

WD5002AALX SATA 6 Gb/s 3.5 Inch 7200 500 GB 32 MB

WD2001FASS SATA 3 Gb/s 3.5 Inch 7200 2 TB 64 MB

WD1001FALS SATA 3 Gb/s 3.5 Inch 7200 1 TB 32 MB

WD7501AALS SATA 3 Gb/s 3.5 Inch 7200 750 GB 32 MB

WD6401AALS SATA 3 Gb/s 3.5 Inch 7200 640 GB 32 MB

WD5001AALS SATA 3 Gb/s 3.5 Inch 7200 500 GB 32 MB

 

 

It is definitely a WD Black.  Here is a link to newegg for the same item.  $10 more than the other link I posted.

 

Western Digital Caviar Black WDBAAZ0020HNC-NRSN 2TB 7200 RPM 32MB Cache SATA 3.5" Internal Hard Drive

It is definitely a WD Black.  Here is a link to newegg for the same item.  $10 more than the other link I posted.

 

Western Digital Caviar Black WDBAAZ0020HNC-NRSN 2TB 7200 RPM 32MB Cache SATA 3.5" Internal Hard Drive

 

Easier to find on Newegg then WD's own site.