HP A6961-04028 - Power supply hot-swap fan assembly - Includes two fans mounted in a metal frame Retail
HP 0235A0G4 - 7502 switch chassis assembly - Includes two Main Processing Unit (MPU) / fabric module slots, two Line Processing Unit (LPU) slots, two power supply slots (PoE is NOT supported), and a fan tray slot (fan tray is included with the chassi Retail
HP 0235A0G5 - 7503-S switch chassis assembly - Includes one Main Processing Unit (MPU) / fabric module slot, two Line Processing Unit (LPU) slots, two power supply slots (PoE is NOT supported), and a fan tray slot (fan tray is included with the chass Retail
HP 0235A0G1 - 7506 switch chassis assembly - Includes two Main Processing Unit (MPU) / fabric module slots, six Line Processing Unit (LPU) slots, two power supply slots, and a fan tray slot (fan tray is included with the chassis) Retail