Wali SAS Tray Caddy for Dell 2.5" SAS Sata Tray Caddy Sled Poweredge T320, T420, T620 Wali manufactured with the highest quality materials and short circuit, internal overheating. 100% compatibility with the original. Wali products are CE/FCC/RoHS certified, tested by manufacturer to match and/or exceed specifications of OEM products. Warranty: 30 Days Money Back Guarantee / 18 Months - Free Exchange (Wali pays for shipping) / Please contact us with any questions or concerns - we are here to help! Products trademarked Wali are marketed and sold exclusively by Wali.