QNAP TL-R400S 4-Bay JBOD Storage Enclosure

The QNAP TL-R400S-US is a JBOD storage enclosure that brings straightforward expansion to QNAP NAS appliances as well as Windows and Ubuntu systems. Its four 3.5 inch bays accept SATA III 6 Gb/s hard drives, letting you add a sizeable block of capacity without replacing existing hardware or disrupting workloads.

Connection is handled through an included QXP PCIe card and a Mini SAS SFF-8088 cable, so setup is as simple as installing the card and plugging in the enclosure. With RAID 0 configured across four drives, the unit can reach transfer speeds up to 1553 MB/s, a level that keeps pace with demanding tasks such as large backup jobs, media editing, or database testing. RAID 5 and individual drive modes are also available when data protection or flexible allocation is the priority.

The chassis occupies one rack unit and has a short depth that slips into network closets, cable-dense racks, or portable flight cases where space is limited. Dual 40 mm fans pull heat away from the drives, while the internal 100 W power supply keeps consumption modest at roughly 25 W during regular operation. Whether you manage a small office server, a lab environment, or a production studio, the TL-R400S-US offers a clean path to extra storage without the complexity of a full secondary NAS.

• Four 3.5 inch SATA III 6 Gb/s drive bays for quick capacity growth
• Supports RAID 0 for speed, RAID 5 for redundancy, and JBOD for individual disks
• Mini SAS SFF-8088 connection; QXP PCIe expansion card included
• Read and write performance up to 1553 MB/s in RAID 0
• Compatible with QTS and QuTS hero based NAS, plus Windows and Ubuntu hosts
• One rack unit chassis with short depth for tight or portable racks
• Built-in dual 40 mm cooling fans maintain drive health
• 100 W power supply; typical consumption around 25.07 W