WESTERN DIGITAL HDD Desktop Caviar Blue (3.5“, 1TB, 64MB, SATA III-600)., With SATA and PATA interfaces, cache sizes ranging from 8 MB to 16 MB, WD Caviar Blue drives offer a full range of performance features. Pick the drive that suits your needs with the confidence in knowing that all WD Caviar Blue drives are built to the highest standards of quality and reliability.