Amazon.com offers the ASUS 4x Internal Serial ATA Blu-ray / DVD Drive
in Black, model no. BR-04B2T, for $45.74
. With free shipping
, that's the lowest total price we could find by $25, although it was offered in white for $16 less in February (since expired).
This drive reads Blu-ray discs at 4x and DVD discs at 8x.