The iStarUSA 4U 10-Bay Stylish Storage Server Trayless Rackmountable Chassis Kit is designed for storing up to 6 x 3.5" Hotswap HDDs. It features SAS I/II & SATA I/II/III interfaces.
The D410 4U Rackmount Chassis from the D Storm series supports up to 7 full-length and full-height add-on cards and a total ten 5.25" drive bays for RAID configuration and high-density data storage. Two 120mm cooling fans on the sides provide adequate ventilation to prevent critical equipment from heat damage. It provides server or cluster maximum reliability and performance.