HP A6961-04028 - Power supply hot-swap fan assembly - Includes two fans mounted in a metal frame Retail
HP D8520-63013 - Hot-swap fan assembly - Includes three fans - Mounts in the fan Tray in the center of the chassis assembly Retail
HP A6961-04055 - I/O section hot-swap fan assembly - Includes two fans mounted in a metal frame Retail
HP A5191-04002 - Tubeaxial fan assembly - Includes the fan and metal enclosure with finger guards - Used as a Hot-Swap chassis fan Retail
