QNAP TL-R400S 4-Bay JBOD Storage Enclosure

Overview

The QNAP TL-R400S-US is a 4-bay JBOD storage enclosure designed to expand storage capacity for QNAP NAS appliances as well as Windows and Ubuntu systems. It supports four 3.5 inch SATA III 6 Gb/s hard drives, allowing you to add significant storage without replacing existing hardware or interrupting ongoing tasks. With transfer speeds reaching up to 1553 MB/s in RAID 0, it handles demanding workloads such as large backups, media editing, and database testing efficiently.

Key features

• Four SATA III 6 Gb/s drive bays provide straightforward and scalable capacity expansion.
• Supports multiple RAID configurations including RAID 0 for high-speed performance, RAID 5 for data redundancy, and JBOD for flexible individual disk use.
• Includes a QXP PCIe expansion card and Mini SAS SFF-8088 cable for easy and reliable connection to host systems.
• Compact one rack unit chassis with a short depth fits well in space-constrained network closets, cable-dense racks, or portable flight cases.
• Dual 40 mm cooling fans ensure consistent airflow to maintain drive health and prevent overheating during intensive operations.
• Efficient internal 100 W power supply keeps power consumption low, averaging around 25 W during normal use.
• Compatible with QTS and QuTS hero NAS operating systems as well as Windows and Ubuntu platforms, offering versatile integration options.

Key specs

• Drive bays: 4 x 3.5 inch SATA III 6 Gb/s
• Maximum transfer speed: up to 1553 MB/s (RAID 0)
• RAID support: RAID 0, RAID 5, JBOD
• Connection interface: Mini SAS SFF-8088
• Expansion card: QXP PCIe included
• Cooling: dual 40 mm fans
• Power supply: 100 W internal
• Typical power consumption: approximately 25.07 W
• Chassis size: 1 rack unit, short depth for tight spaces

Connectivity and compatibility

The enclosure connects to host systems via a Mini SAS SFF-8088 interface, facilitated by the included QXP PCIe expansion card. This setup ensures a stable and high-speed link to QNAP NAS devices running QTS or QuTS hero, as well as Windows and Ubuntu computers. This broad compatibility makes it a flexible choice for various IT environments.

Performance and reliability

With RAID 0, the TL-R400S-US delivers transfer speeds up to 1553 MB/s, supporting workflows that require fast data access such as video editing or large-scale backups. RAID 5 mode offers data protection by distributing parity information, while JBOD mode allows each drive to operate independently for flexible storage management. The dual cooling fans help maintain optimal operating temperatures, extending drive lifespan and ensuring consistent performance.

Ideal uses and environments

This storage enclosure fits well in small office servers, lab setups, and production studios where additional storage is needed without the complexity of a full secondary NAS. Its compact size and efficient power consumption make it suitable for network closets and portable rack cases, supporting users who require reliable, high-capacity storage expansion in limited spaces.