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.

	SATA	SAS
Speed	6Gb/s	12Gb/s
Workload	10-20%	100%
Reliability	700,000+ hours @25℃	1.2-1.6M hours 24/7 @45℃
Latency	High	Low

Expand your total disk capacity up to 2.3PB

A NAS with a QXP-820S-B3408 expansion card can be daisy-chained with up to 8 units of TL SAS JBOD enclosures.

Note: QNAP calculates the effective capacity assuming RAID 60 with 24TB hard drives, PB-to-PiB conversion, and using storage utilization processes such as pool over-provisioning.

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.

Minimum requirements: QTS 4.5.1 or QuTS hero h4.5.1. QES will be available from Q1 2021. Always consult the compatibility list before purchasing add-ons and accessories for your NAS.

Get the best SAS cables for your work environment

	CAB-SAS05M-8644	CAB-SAS10M-8644	CAB-SAS20M-8644	CAB-SAS30M-8644
Length	0.5m	1m	2m	3m
	Buy now!	Buy now!	Buy now!	Buy now!

*A wide port with four SAS signals.
**Only passive cables are supported. Passive cables are sold separately.

Check Compatible NAS Models

Always consult the compatibility list before purchasing add-ons and accessories for your NAS.