QNAP QXP-820S-B3408 High-Bandwidth, Full Duplex 12Gb/s SAS Card

$399.00
None availableas of 04/08/2026

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Secure checkoutISO 9001:2015 and CMMC certifiedFamily owned since 1982

Free shipping on most items when you spend $100 or more.

Real people answer: chat with us, email customerservice@colamco.com, or call 1-800-692-8757, Monday to Friday, 8am to 5pm EST.

Overview

About the QNAP QXP-820S-B3408

The SAS HBA PCIe Expansion Card is designed for expanding the capacity of a QNAP NAS by connecting it to TL SAS JBOD storage enclosures and REXP expansion units. Multiple expansion units can be daisy-chained via high-speed mini SAS HD cables to expand the total disk capacity up to 4.6PB to meet growing data storage needs. SAS-based storage solutions can assist businesses in creating highly-reliable IT environments for virtualization, surveillance, Big Data, video editing and TV broadcast storage.

Use high-performance and high-availability SAS drives

Compared with SATA, SAS enables low-latency, power-efficient, and IOPS-optimized storage capabilities. Each SAS port combines four 12Gb/s SAS channels, delivering up to 48Gb/s per host connection.

Expand your total disk capacity up to 4.6PB

A NAS with a SAS expansion card can be daisy-chained with up to 16 devices, including TL SAS JBOD storage enclosures and REXP expansion units. This provides to potential to store up to 4.6PB (calculated using 18TB drives in sixteen 16-bay enclosures).

Attain faster backup and uninterrupted services with flexible port configuration

SAS expansion cards can be flexibly configured to fit various usage applications. By managing multipath or link aggregation with NAS to expansion units, data transfer loads are effectively balanced, and you can avoid interrupting system services and prevent backup failures.

Technical specifications

Technical Specifications of the QNAP QXP-820S-B3408

General Information

General Information specifications
Manufacturer QNAP Systems
Manufacturer Part Number QXP-820S-B3408
Manufacturer Website Address http://www.qnap.com
Brand Name QNAP
Product Model QXP-820S-B3408
Product Name QXP-820S-B3408 High-Bandwidth, Full Duplex 12Gb/s SAS Card
Product Type SAS Controller

Technical Information

Technical Information specifications
Host Interface PCI Express 3.0 x8
Controller Type 12Gb/s SAS

Interfaces/Ports

Interfaces/Ports specifications
Total Number of SAS Ports 2
Number of SAS Ports (External) 2
SAS Connector Details Two (x4) SFF-8644

Physical Characteristics

Physical Characteristics specifications
Form Factor Plug-in Card
Card Height Low-profile

Miscellaneous

Miscellaneous specifications
Package Contents
  • QXP-820S-B3408 High-Bandwidth, Full Duplex 12Gb/s SAS Card
  • Desktop Brackets
  • Full-height Brackets
  • Low-profile Brackets
Additional Information Controller
  • Broadcom SAS3408 Tri-mode

SATA

  • Speed 6Gb/s
  • Workload 10-20%
  • Reliability 700,000+ hours @25?
  • Latency High

SAS

  • Speed 12Gb/s
  • Workload 100%
  • Reliability 1.2-1.6M hours 24/7 @45?
  • Latency Low
Green Compliant Yes

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