OWC 4TB ThunderBay 4 mini 4-Drive HDD Thunderbolt 3 RAID 5 Array

BH #OWTB3QMMSR04 • MFR #OWCTB3QMSR04T7
OWC 4TB ThunderBay 4 mini 4-Drive HDD Thunderbolt 3 RAID 5 Array
Key Features
  • 4TB Total Storage Capacity
  • 4 x 1TB 2.5" HDDs
  • 4 x 2.5" SATA Drive Bays
  • 2 x Thunderbolt 3
Backup critical data with the 4TB ThunderBay 4 mini 4-Drive HDD Thunderbolt 3 RAID 5 Array from OWC / Other World Computing. Featuring four 2.5" drive bays, this RAID array offers a total of 4TB of storage divided between four HDDs. Equipped with two Thunderbolt 3 ports, the ThunderBay 4 mini supports transfer speeds up to 1556 MB/s when using RAID 0, allowing for quicker backups or daisy-chaining multiple arrays for extended storage.
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OWC ThunderBay 4 mini External HDD Overview

  • 1Description
  • 2Thunderbolt 3
  • 3Multiple RAID Levels
  • 4Multi-Drive Capable
  • 5Performance Quality Check

Backup critical data with the 4TB ThunderBay 4 mini 4-Drive HDD Thunderbolt 3 RAID 5 Array from OWC / Other World Computing. Featuring four 2.5" drive bays, this RAID array offers a total of 4TB of storage divided between four HDDs. Equipped with two Thunderbolt 3 ports, the ThunderBay 4 mini supports transfer speeds up to 1556 MB/s when using RAID 0, allowing for quicker backups or daisy-chaining multiple arrays for extended storage.

This array comes pre-formatted in RAID 5, but supports RAID 0, 1, 10, and 4 modes. The included software controller, SoftRAID XT, offers driver certification checks, email notifications, volume validation, and drive failure prediction. The software controller also allows for easy volume management, so you can choose what to use RAID volumes for and how much space is allocated for backup. The ThunderBay 4 mini is compatible with Windows 10 and later, as well as MAC OS X 10.13 and later. Furthermore, independent volumes can be booted with macOS. An ASMedia ASM-1062 chipset functions as the SATA Controller while an Intel JHL6540 controls Thunderbolt 3 operating modes.

Housed in black aluminum, the array features a locking front panel offering access to the individual bays. The back panel includes a Kensington Security Slot. The ThunderBay 4 mini comes with a 100-240V power supply, and outputs 12V and 6A, or 72W.

Air cooled, this array uses a single 60mm fan and is designed to operate in temperatures between 41 and 95°F. Measuring 7.5 x 4.6 x 3.8", the small form factor of the ThunderBay 4 mini is designed to fit desktops, racks, and DIT carts, with a total weight of 2.51 lb.

Thunderbolt 3
Thunderbolt 3 is a hardware interface that utilizes the reversible USB Type-C connector. Doubling the speed of its predecessor, Thunderbolt 3 features a maximum throughput of 40 Gb/s when used with compatible devices. The connector also transmits data via USB 3.1 at up to 10 Gb/s, and dual-bandwidth DisplayPort 1.2 allows you to connect up to two 4K displays simultaneously.
Multiple RAID Levels
Arriving pre-configured in RAID 5, the ThunderBay mini 4 also supports RAID 0, 1, 10, and 4.
Multi-Drive Capable
The two Thunderbolt 3 ports allow you to connect up to five additional arrays for increased storage capacity.
Performance Quality Check
Each ThunderBay 4 mini receives multiple hours of burn-in by OWC, intended to ensure each unit is performing to the manufacturer's standards.

OWC ThunderBay 4 mini External HDD Specs

Key Specs
Storage Capacity
4 TB
Included Drives
4x 1 TB 2.5" HDD
Interface
SATA
Number of Bays
4x 2.5"
Inputs/Outputs
2x USB-C Thunderbolt 3 (40 Gb/s)
RAID
RAID 0/1/5
Drives
Storage Capacity
4 TB
Included Drives
4x 1 TB 2.5" HDD
Cache Memory per Drive
128 MB
Initial RAID Configuration
RAID 5
Interface
SATA
Rotational Speed
7200 rpm
General
Number of Bays
4x 2.5"
Default OS Support
Requires Formatting Before Use
Inputs/Outputs
2x USB-C Thunderbolt 3 (40 Gb/s)
Compatible Drive Interface
SATA
Form Factor
Desktop
RAID
RAID 0/1/5
Hot-Swap Support
No
Transfer Rates
1556 MB/s
Software
OS Compatibility
macOS 10.13 or Later
Windows 10 or Later
Security
Encryption
No
Security Features
Kensington Security Slot, Lockable Bay Door
Electrical
AC Input Power
100 to 240 VAC, 50 / 60 Hz
Power Source
AC Adapter
PSU Wattage
1 x 72 W
Environmental
Operating Temperature
41 to 95°F / 5 to 35°C
Storage Temperature
-4 to 140°F / -20 to 60°C
Certifications
BSMI, CE, FCC, RCM, VCCI
Physical
Status Monitoring
LED Indicator
Cooling
1x 60 mm Fan
Noise Level
32.5 dBA
Material of Construction
Aluminum
Dimensions
7.5 x 4.6 x 3.8" / 19.1 x 11.7 x 9.7 cm
Weight
2.5 lb / 1.1 kg

OWC ThunderBay 4 mini External HDD Reviews

Impressive capacity and speed for price

By Kevin
Rated 5 out of 5
Date: 2023-05-08

I was in desperate need of a larger RAID and wanted RAID 5, so I quickly ordered this after what I thought was a lot of comparative research on my part. After it arrived, I had a moment of total panic when I realized the drive speed was only 5400 RPM. Worry not though, I've been editing 4K footage on it for weeks and it never lags or chokes. I will say that the RAID software installation is a bit weird and it took me a minute to find the serial number for it on the enclosure. Also there is no power switch so I'm routinely unplugging power from the back which is kinda lame. But otherwise I am so far very impressed and happy with my choice.

Great Enclosure, Could Be Better Designed

By Emerson
Rated 4 out of 5
Date: 2021-02-28

I bought two of these to replace units from the previous generation. The two units are RAIDed via SoftRAID for video editing. Using 8 1TB WD Blue SSD in RAID 0, the read and write speeds are almost as fast as the SSD in my MacBook Pro. These units are very quiet. A few improvements would make these great: 1. The mounting method could be improved: a. use stainless steel trays instead of rails. b. the springs (clips) for securing the rails can pop off. 2. The logo light cannot be turned off. (Gaff tape came in handy.) 3. The power supply is a bit large.

See any errors on this page? Let us know

What drives does this come with and in RAID 0 ...

What drives does this come with and in RAID 0 what is their max throughput speed?
Asked by: Joachim
Can i put 4 x 8 TB SSD cards for 32 TB?
Answered by: Alejandro
Date published: 2023-04-15
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