This Western Digital WD Caviar Green 2TB SATA hard drive (Model: WD20EARX-00PASB0, Serial: WMAZA6042836) is being sold specifically for professional data recovery purposes. If you have a failed Caviar Green drive with the same model and need a matching donor drive for recovery, this is it. PCB number 2060-771698-004. Manufactured September 2011 in Thailand. Sold as-is to data recovery professionals only. No returns accepted.​​​​​​​​​​​​​​​​