Posted by Mustafa Yusufali

Taiwan, Taipei, July 21, 2021 - QNAP® Systems, Inc., a leading computing, and storage solutions innovator, today released the 3U 16-bay TL-R1620Sdc dual-controller SAS 12Gb/s storage expansion unit. Supporting 12Gbps SAS, Broadcom® SAS DataBolt™ bandwidth optimization technology, and a dual path mini-SAS design with redundant power supply, enterprises can benefit from optimal performance and enhanced system reliability. Up to seven TL-R1620Sdc units can be daisy-chained to expand the capacity of dual-controller QNAP NAS and Windows® Servers, providing scalability and high reliability for mission-critical storage of file servers, virtualization, surveillance, medium-sized data centers, multimedia, and more.

“For mission-critical enterprise environments, we recommend using a dual-controller NAS with dual-controller TL-R1620Sdc JBOD units to establish a reliable IT base with future-proof scalability”, said Jason Hsu, Product Manager of QNAP, adding “The dual-path architecture ensures failure resistance to fulfill uninterrupted mission-critical enterprise tasks and continuous business services.”

The TL-R1620Sdc uses a low-power SAS Expander and both controllers have three Mini-SAS HD (SFF-8644) ports. Each SAS wide port combines four SAS 12Gb/s channels for up to 48Gbps bandwidth. The space-efficient short depth design makes it easy to install in standard or small server racks. The TL-R1620Sdc can accommodate sixteen 12Gb/s or 6Gb/s SAS drives and supports QNAP’s QDA-SA2 adapter for installing 2.5-inch SATA drives that can share SAS dual-port advantages, providing businesses with a cost-effective option for storage expansion in fault-tolerant storage environments.

The TL-R1620Sdc can be used with QES-based dual-controller QNAP NAS and managed using the Storage Manager for JBOD storage management, such as setting RAID groups, storage pools and snapshots. The host NAS storage capacity can easily grow with business needs to accommodate massive data or backup files.

Host Windows® servers with SAS HBA PCIe cards can connect to the TL-R1620Sdc and configure S2D (Storage Space Direct) failover clusters to enable scaling compute/workload capabilities. The QNAP JBOD Manager (Available from Q3 2021) allows Windows® users to manage and monitor the TL-R1620Sdc, while advanced users can connect using the RJ45 Console Port and use the command line interface (CLI).

TL-R1620Sdc Key Specifications
3U rackmount, 16x hot-swappable 3.5-inch/2.5-inch SAS 12Gbps/6Gbps hard drives or SSDs, 550W redundant power supply, 3x 12 GB/s SAS 3.0 (x4 Lane) Mini-SAS HD (SFF-8644) wide ports for each controller, 2x mini-SAS cables are included in the package

The dual-controller TL-R1620Sdc expansion unit is backed by a 5-year warranty. For more information and to view the full QNAP NAS lineup, please visit


About QNAP Systems, Inc.

QNAP (Quality Network Appliance Provider) is devoted to providing comprehensive solutions in software development, hardware design and in-house manufacturing. Focusing on storage, networking and smart video innovations, QNAP now introduce a revolutionary Cloud NAS solution that joins our cutting-edge subscription-based software and diversified service channel ecosystem. QNAP envisions NAS as being more than simple storage and has created a cloud-based networking infrastructure for users to host and develop artificial intelligence analysis, edge computing and data integration on their QNAP solutions.