• Supports Mini-SAS SFF-8088 maximum 24 Gbps transfer speed
  • Supports up to four 2.5" SAS / SATA 6 Gbit/s drives
  • Individual metal key lock for each drive for extra security
  • Independent drive status LED
  • Built-in cooling fan for excellent heat dissipation
  • Compatible with all 2.5" drives up to 15mm thickness
  • Fully supports Hot-Swap function
  • Complete retail pack includes Mini-SAS SFF-8088 to Mini-SAS SFF-8088 cable, Mini-SAS SFF-8087 to SATA 7 pin cable, power adapter card and Mini-SAS adapter
Product Specifications
Model No.
Drive support
4 x 2.5" SAS / SATA HDD or SSD (Support up to 15mm)
Transfer rate
Up to 6 Gbit/s (dependent on drive speed)
Host interface
Mini-SAS SFF-8088 26 pin connector x 1
LED indicator
Solid Green: Power On

Yellow: Fan Failed

Purple: Overheating

White: HDD Read / Write
Cooling fan
80mm PWM fan x 1
Operating Temperature: 5°C ~ 35°C

Operating Humidity: 20%RH ~ 80%RH

Storage Temperature: -20°C ~ 50°C

Storage Humidity: 20%RH ~ 80%RH
Net weight
100mm (W) x 120mm (H) x 181mm (D)
1. Prior to installing power adapter card (ECP01), please calculate your computer’s total power consumption to determine if you have enough power to support this card. You should set aside 60W from the power supply to TS421S
2. Make sure your computer case has enough expansion slots available for TS421S used, TS421S will occupy two slots
3. Your system must have SAS controller if you want to use SAS HDD
4. Hard drive capacity and RAID support is dependent on SAS or SATA controller used
File Download
TS421S Manual
File Size
2.59 MB
TS421S High resolution photos
File Size
13.40 MB
TS421S Product Sheet (ts421s-edm-en.pdf)
File Size
658.31 KB
Q & A
You can select quick format when performing the format function.
The product can support 2.5" SATA / SAS HDD / SSD, but not IDE, SCSI HDD.
Mostly yes, but depending on the environment in which the drive was previously used, there may be incompatibility, so to avoid unpredictable data loss, please backup first before using it.