2-pack bulk tray set, OEM replacement part 651687-001 / 651699-001 for HPE Gen8 & Gen9 servers; Standard 2.5" SFF carrier, fully compatible with SAS and SATA HDD & SSD drives; Ventilated metal frame delivers excellent heat dissipation and anti-vibration performance; Hot-swap latch with status LED indicator, swap drives without shutting down the server; Complete mounting hardware included, direct plug-and-play fit with no chassis modification