Conceptronic CHD3SUSB3, 3.5", Serial ATA, Serial ATA II, Serial ATA III, 4.8 Gbit/s, Silver Conceptronic CHD3SUSB3. Number of storage drives supported: 1, Storage drive size: 3.5", Supported storage drive interfaces: Serial ATA, Serial ATA II, Serial ATA III. Data transfer rate: 4.8 Gbit/s. Product color: Silver