5-bay SAS-12G / SATA-6G hot-swappable high performance NAS chassis

■ Hot-swap drive trays support up to five 3.5" or 2.5" SAS-12G / SATA-6G drives with two LED indicators for displaying drive status*

■ Drive tray features anti-theft lock design to keep confidential information secured

■ Supports 8 x 2.5" hard drive and up to 7 x 3.5" hard drives**

■ Accommodates Micro-ATX motherboard and ATX PSUs.

■ Supports up to 368mm (14.5") expansion cards**

■ Front I/O includes USB Type-C x 1, USB 3.0 x 2, combo audio x 1

■ Ample space for CPU cooling (82mm in height)

Hot-swap drive trays
Support up to five 3.5” or 2.5” SAS-12G / SATA-6G drives with two LED indicators for displaying drive status
Confidential information security
In an era where data is gold, individual locks are included with each drive bay to deter theft or unwanted removal of drives, offering users an extra peace of mind
Prodigious accommodation
CS351 offers users a wide array of hardware options that includes support for 3.5” or 2.5” drives in SATA or SAS format, high-end graphics cards, and RAID cards
Front I/O includes USB Type-C x 1, USB 3.0 x 2, combo audio x 1


Model No. SST-CS351
Material Plastic front panel, galvanized steel body
Motherboard Micro-ATX, Mini-DTX, Mini-ITX
Drive bay External 3.5" / 2.5" SAS / SATA hot-swap x 5
Internal 3.5" x 2
2.5” (5 ~ 9.5mm) x 1 + 2.5” (15mm) x 7**
HDD Interface SATA drive up to 6 Gbit/s (dependent on drive speed)
SAS drive up to 12 Gbit/s (dependent on drive speed)
Power connector on HDD backplane 4 pin peripheral x 1, 15 pin SATA Power x 1
Cooling system Front --
Rear 40mm x 3 (optional)
Side --
Top 80mm x 2 (optional)
Bottom --
Internal 80mm x 1
Expansion slot 4
Front I/O port USB Type-C x 1
USB 3.0 x 2
Combo audio x 1
LED Indicator Chassis Power LED x 1: Blue
HDD Access x 1: Blue blinking
HDD Tray HDD Power LED: Green
HDD Access: Blue blinking
Power supply Standard PS2(ATX) (optional)
Limitation of expansion card 368mm (14.5”) **
Limitation of CPU cooler 82mm
Limitation of PSU 160mm ***
Net weight 5 kg
Dimension 265mm (W) x 209mm (H) x 411mm (D) , 25.1 Liters
10.43" (W) x 8.23" (H) x 16.18" (D) , 25.1 Liters

* With Mini-SAS HD (SFF8643) ~ SATA 7 pin cable, paired with 12 Gbit/s SAS HD card, can achieve 12 Gbit/s of high performance speed. (i.e SilverStone CPS05 & ECS05)
** The amount of 2.5” hard drives installed will affect the length of the expansion cards that can be supported. For more details, please refer to the manual.
*** The maximum depth of the PSU can reach 160mm. Due to the unique structure design of CS351, it is recommended that the depth should not exceed 150mm to avoid connector interference


  • Q&A

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CS351 manual V1.0 9,966 KB
CS351 High resolution photos V1.0 11,662 KB
CS351 Product Sheet V1.0 1044 KB

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The connection between the backplane and the motherboard or the host control card is only a SATA data transmission cable. This cable does not contain the control signal of the LED. Therefore, in the definition of SATA HDD, SATA Power Pin11 is reserved for the staggered spinup/activity indication of the HDD. The HDD backplane of any NAS or server chassis is based on this specification as the indicator light of the HDD.
If your HDD tray cannot display this LED light, we recommend to check with HDD manufacturer if your HDD has a reserved LED signal that can be driven by SATA power pin11.