QNAP QXP-820S-B3408

Overview

The QNAP QXP-820S-B3408 is a 2-port Mini SAS Host Bus Adapter designed to enhance data transfer speeds for QNAP TL SAS JBOD Storage Enclosures. Featuring a PCIe 3.0 x8 interface and the Broadcom SAS3408 controller, it supports tri-mode operation with SAS III and SATA III protocols, delivering PCIe speeds up to 8 GT/s. This adapter is built to fit various server or workstation cases with included low-profile and full-height brackets, making it a practical choice for expanding storage in professional and enterprise environments.

Key features

• Two Mini SAS SFF-8644 ports provide high-speed and reliable connections to compatible storage devices.
• Broadcom SAS3408 tri-mode controller supports SAS III, SATA III, and PCIe 3.0 x8 for versatile protocol compatibility and fast data throughput.
• Includes both low-profile and full-height brackets, allowing flexible installation in different server or workstation chassis.
• Supports passive CAB-SAS cables, simplifying cabling while maintaining stable and consistent performance.
• Compact design with a built-in cooling fan ensures reliable operation even under heavy workloads.
• Compatible with QNAP QTS 4.5.1 operating system for seamless integration into existing QNAP storage setups.

Key specs

• Controller: Broadcom SAS3408 tri-mode
• Interface: PCI Express 3.0 x8
• Ports: 2 x Mini SAS SFF-8644
• Supported protocols: SAS III, SATA III
• PCIe speed: up to 8 GT/s
• Cooling: built-in fan
• Bracket types: low-profile and full-height included
• Operating system compatibility: QNAP QTS 4.5.1

Connectivity and compatibility

This adapter connects through a PCIe 3.0 x8 slot, providing ample bandwidth for high-speed storage arrays. The two Mini SAS SFF-8644 ports support both SAS III and SATA III devices, making it compatible with a wide range of QNAP TL SAS JBOD Storage Enclosures and other SAS/SATA storage solutions. Its support for passive CAB-SAS cables simplifies setup and helps maintain stable connections in complex storage environments.

Installation and setup

The QXP-820S-B3408 comes with both low-profile and full-height brackets, allowing it to fit into various server and workstation cases without modification. Its compact form factor and integrated cooling fan ensure it operates reliably in tight spaces and under demanding workloads. Installation is straightforward, especially when used with QNAP’s QTS 4.5.1 operating system, which provides native support and easy configuration options.

Ideal uses and environments

This adapter is well suited to IT professionals and businesses that need to expand their storage infrastructure with fast and reliable connectivity. It works well in data centers, enterprise servers, and professional workstations where high-speed access to large storage arrays is critical. Whether upgrading existing servers or building new storage arrays, this adapter offers the flexibility and performance required for demanding data environments.

Orders are processed within 2 business days, which includes verification, packing, and dispatch. Shipping costs are calculated at checkout based on destination, total weight, and selected speed. Free shipping applies to carts over $100 (excluding heavyweight items). All available options and final pricing are clearly shown before payment so you can choose the service that best fits your needs.

Deliveries are handled by major carriers such as USPS, UPS, and FedEx. Estimated delivery times are displayed at checkout and may vary depending on service level and location. Please note that these are estimates and can be affected by weather, holidays, or carrier volume. Once your order ships, you’ll receive a tracking number for real-time updates from pickup to final delivery.

Providing an accurate shipping address helps prevent delays, and changes may be limited once the order has been dispatched. P.O. boxes are supported only when permitted by the selected carrier. Packaging and handoff are optimized to protect items during transit, though oversized or high-weight products may require special handling. All shipping methods and any related constraints are clearly shown during checkout.

Learn more

Returns are accepted within 30 days of delivery. Items must be unused, in the same condition received, with tags, manuals, accessories, and original, unaltered packaging. Any item kept will be deducted from the refund. Start a return by sending us an email. Items sent back without approval may be refused or returned to the sender.

Some items are not returnable: opened TVs/combos/monitors 37″+, opened computers or software, electronic downloads, opened consumables (film, paper, bulbs, media, ink), custom or modified computers, special-order or “nonreturnable” items, submerged underwater gear, and opened educational media.

After inspection, refunds are issued to the original payment method; allow 5–7 business days for the credit to post. Shipping, handling, customs duties, and import taxes are nonrefundable. If an item is used, incomplete, or not in original condition, a 30% restocking fee may apply. Direct exchanges are not offered; purchase the replacement and return the original for a refund.

We act solely as a reseller. Any product warranty is provided and administered by the manufacturer, not by our store. That means eligibility, coverage, and outcomes are determined by the manufacturer’s policy for each brand and model. Before purchasing, we recommend reviewing the warranty terms on the manufacturer’s website or in the product documentation to confirm what is covered and for how long.

If you need warranty service, please file the claim directly with the manufacturer. They may require proof of purchase, the product serial number, original packaging, photos, or basic troubleshooting. Some brands ask you to register the product or obtain a case number before shipping it for repair or replacement. We don’t submit or approve claims, but we can point you to the correct support links and contact details.

Keep your invoice and packaging in a safe place, and report any functional issues to the manufacturer as soon as they appear. If you’re unsure whether a problem is covered, the manufacturer’s support team can confirm next steps and timelines. While we cannot intervene in decisions or outcomes, we’re happy to provide purchase documentation or guidance so you can move through the warranty process smoothly.

Learn more