Fantec QB-35U31R

4× 3.5"/2.5" HDD/SSD RAID-Case USB 3.1 Gen. 2

Save your data on the Fantec QB-35U31R with room for four SATA-hard disks or SATA-SSDs combined in two independent RAID-Systems. The QB-35U31R has a USB 3.1 Gen. 2 interface which allows for a PC-connection with a maximum speed of 10 Gbit/s. The USB-hub on the side offers two different USB-connections: one Type A and one USB-C. With the optional supply QB-Bracket 25 (Art.-Nr. 1993) SSDs can be used in the QB-35U31R as well.

  • HDD/SSD Case
  • USB 3.1 Gen. 2 with a data transfer rate up to 10 GBit/s
  • 4× 3,5"(8,89cm) SATA I/II/III-HDD – using 2,5" SATA-SSD is possible the optional supply QB-Bracket 25 (Art.-Nr. 1993)
  • Two RAID-two additional interfaces: 1× USB 3.0 Type A, 1× USB 3.1 USB-C
  • RAID-Modi: RAID 0 Striping, RAID 0 Spanning, RAID 1 Mirroring, Single
  • Optimal cooling of the hard drives by a temperature-controlled 80 mm fan and improved air circulation

Short description

Fast RAID-System with USB 3.1 10 Gbit/s connection. Use of SSDs with the optional Fantec QB-Bracket 25 (Art.-Nr. 1993). Additional USB 3.1 connections in a hub.

  • UASP increases transmission speed
  • SMART-values are limitedly readable in RAID-mode
  • Simple hard drive changing
  • synchronisied shut-off on shut-down of the PC
  • Status-LED display and controls at the front side
  • Handles for easier hard drive removal


The QB-35U31R allows for the using two RAID-sets in combination by choosing between three different RAID-modes and (ex.: RAID 0 and RAID 1) or using all four drives independently.

The QB-35U31R offers these RAID-modes:

RAID 0 STR (Striping) - allows for increased performance
RAID 0 SPN (Spanning) - combines different hard drives to one virtual drive
RAID 1 (Mirroring) - allows for high data security by writing data redundantly
SINGLE - the hard drives are used independently


Data connectors
USB 3.2 zu PC
Ethernet connectors
not available
Power connector
12V 5A, 60 Watt

Supported storage media

Hard drive type
4×3.5" SATA
Maximum hard drive capacity

Supported RAID level

RAID level
Single, 0, 1


SATA, Internal fan, RAID function


Windows 7 / 8.1 / 10 (32/64bit), Mac OS 10.13 or higher

Package content

  • 1× USB 3.1 Kabel
  • 4× Festplattengriffe
  • 1× externes Netzteil
  • 1× Schraubendreher
  • Handbuch

Logistical data

Item name
24 Monate eingeschränkte Hardwaregarantie
Dimensions product (W x T x D)
126 x 215 x 166mm
Weight product
1.8 kg

Fantec QB-Bracket 25

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