• Support up to 12 drives in unprecedented 30 liter Micro-ATX chassis size
  • Designed for vertical or horizontal position, allow users to freely place CS381 anywhere
  • Includes two long-life (L10, 70,000 hours) dual ball bearing 120mm fans
  • Hot-swap drive trays support up to eight 3.5” or 2.5” SAS-12G / SATA-6G drives with two LED indicators for displaying drive status
  • Accommodates SFX or SFX-L power supply
  • Support normal height expansion slots for installation of cards up to 267mm long
  • Kensington lock on front panel for additional security
High Performance NAS Chassis High Performance NAS Chassis
High Performance NAS Chassis
Case Storage Series
Hot-Swap Drive trays Hot-Swap Drive trays
Hot-Swap Drive trays
Support up to eight 3.5” or 2.5” SAS-12G / SATA-6G drives with two LED indicators for displaying drive status
Cooling System Cooling System
Cooling System
For CPU cooling, the CS381 has room to accommodate up to a 240mm radiator for nearly unlimited CPU choices.
Front Door Lock Front Door Lock
Front Door Lock
For extra security, the entire front can be locked to prevent unwanted drive removal and power button can also be locked together to prevent accidental power on/off
Prodigious Accommodation Prodigious Accommodation
Prodigious Accommodation
Designed to house Micro-ATX motherboard, the CS381 gives users a wide array of hardware options that includes support for 3.5” or 2.5” drive in SATA or SAS format, high-end graphics card, and RAID cards
Product Specifications
Model No.
Plastic and metal mesh front panel, galvanized steel body
Drive bay
  • 3.5” / 2.5” SAS / SATA external hot-swapping x 8
  • 2.5” (5mm ~ 15mm) x 4 (2 on left racks)
3.5" Internal
  • --
2.5" Internal
  • --
Cooling system
  • --
  • 2 x 120mm 1300rpm 28dBA dual ball bearing fan
    Life time 70000hr (L10)
  • 2 x 120mm or 3 x 80mm fan slot (optional)
  • --
  • --
  • --
Expansion slot
Front I/O port
USB 3.1 Gen 1 x 2

audio x 1

MIC x 1
Power supply
SFX / SFX-L PSU (sold separately)
Net weight
7 KG
400mm (W) x 225mm (H) x 316mm (D) , 28 Liters
15.75" (W) x 8.86" (H) x 12.44" (D) , 28 Liters
Kensington lock
Limitation of CPU cooler
Limitation of PSU
Radiator support
  • --
  • --
  • 1 x 120mm or 1 x 240mm
  • --
  • --
HDD backplane
Mini-SAS HD SFF-8643 36 pin connector x 2*/**
HDD Interface
SATA drive up to 6 Gbit/s (depends on drive speed)
SAS drive up to 12 Gbit/s (depends on drive speed)
LED Indicator
Power ON: Blue
Accessing: Red blinking
  • Power ON: Blue
    Accessing: Red blinking
HDD Tray
  • HDD Power LED : Red
    HDD Access : Blue blinking
Limitation of expansion card
Up to 10.5” (266.7mm), please refer to manual for more details
* Please note the directionality of MINI SAS cables used, cables such as CPS05-RE is recommended for use with SATA ports on motherboard.
** MINI-SAS HD ports on backplane are not compatible with U.2 ports on motherboards.
*** If CPU cooler used has top-down airflow direction, please make sure there is at least 10mm of clearance above the fan for sufficient air intake.
File Download
CS381 manual
File Size
2.76 MB
CS381 High resolution photos
File Size
14.53 MB
CS381 Product Sheet (CS381-Product_sheet-EN.pdf)
File Size
239.16 KB
Q & A
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.
Back to list page