ThunderBay 4 Thunderbolt 5 Enclosure
Designed by OWC
New
Specifications
Features and benefits
- 80Gb/s Thunderbolt 5 performance
- Dual Thunderbolt 5 ports deliver up to 80Gb/s of bi-directional data bandwidth and pass through up to 120Gb/s of display bandwidth for high-resolution displays.
- Real-world speeds up to 1,703MB/s
- Transfer and edit heavy media workflows at up to 1,268MB/s with SATA hard drives or 1,703MB/s with SATA SSDs in RAID 0.
- 4x SATA drive bays
- Houses up to four standard 2.5-inch or 3.5-inch SATA hard drives or solid-state drives on hot-swap thumbscrew trays.
- Daisy-chain expansion
- Connect up to five additional Thunderbolt or USB4 devices in a daisy chain without giving up a port on your computer.
- Internal 200W universal power supply
- Auto-switching internal power supply runs from standard mains power with no bulky external power adapter cluttering your desk.
Specifications
| Form factor | 4-bay desktop storage enclosure |
|---|---|
| Host interface | Thunderbolt 5 (USB-C) up to 80Gb/s |
| Downstream ports | 1 x Thunderbolt 5 (USB-C) up to 80Gb/s |
| Drive bays | 4 x 2.5-inch or 3.5-inch SATA 6Gb/s |
| Max data transfer rate | Up to 1,268MB/s (HDD) / up to 1,703MB/s (SSD) |
| RAID modes | RAID 0, 1, 4, 5, 6, 6+, 10, JBOD (with RAID software such as SoftRAID, not included) |
| Display support | Up to one 8K display at 120Hz or 4K at 240Hz |
| Power delivery | Up to 15W per Thunderbolt 5 port |
| Cooling | 1 x 92mm cooling fan with flow-thru ventilation |
| Security | Front panel key lock and Kensington security slot |
| Power supply | Internal 100–230V AC, 50/60Hz, 200W (IEC C13) |
| Dimensions | 13.5 x 18.4 x 24.6 cm (5.3 x 7.2 x 9.7 in) |
| Weight | 3.74 kg (8.25 lbs) without drives |
Materials
| Chassis | Aluminium |
|---|---|
| Drive trays | Aluminium with vibration-damping mounts |
| Feet | Vibration-absorbing non-skid rubber |
What's in the box
- OWC ThunderBay 4 Thunderbolt 5 Enclosure
- 0.7m OWC Thunderbolt 5 cable
- 2 x Security keys for front panel lock
- AC power cable (IEC C13)
- Support manual (digital, via QR code card)
- 90-day Strada remote file access trial (2 licenses)
Compatibility
Fits: Up to four standard 2.5-inch or 3.5-inch SATA hard drives or solid-state drives.
Doesn't fit: NVMe, M.2, U.2, or SAS storage drives.
Works with: Mac computers running macOS 15 Sequoia or later, and PC workstations running Windows 11 or later, with a Thunderbolt 5, Thunderbolt 4, USB4, or Thunderbolt 3 (Mac only) port.
Is it right for you?
Yes, if you want a quiet, high-bandwidth desktop enclosure to house up to four SATA hard drives or SSDs for high-capacity archives, video editing, and backups over Thunderbolt 5.
Probably not, if you need a compact bus-powered drive for travel, or you want high-speed NVMe blade storage rather than SATA drives.
Using it
Installing drives. Unlock the front panel with the included key, loosen the thumbscrews to slide out each tray, and mount your 2.5-inch or 3.5-inch SATA drives using the provided screws. Slide the trays back in until seated firmly and lock the front door.
Connecting. Connect the included 0.7-metre Thunderbolt 5 cable from the host port to your Mac or PC, plug in the mains power lead, and configure your drives using macOS Disk Utility, Windows Storage Spaces, or your preferred RAID utility.
Warranty
OWC gives a 2-year limited warranty from the date of purchase against defects in materials and workmanship. Normal wear and tear, cosmetic damage (including scratches and cracks), accidental damage and misuse are not covered.
Questions
- Does it come with hard drives or SSDs installed?
- No. This is an empty DIY storage enclosure. You supply your own 2.5-inch or 3.5-inch SATA hard drives or SSDs.
- Can I mix hard drives and SSDs?
- Yes. Each bay operates independently over SATA, allowing you to combine different drive capacities or media types in independent disk configurations.
- Does it support hardware RAID?
- No. ThunderBay 4 is a multi-drive enclosure that uses software RAID managed by your operating system (macOS Disk Utility or Windows Storage Spaces) or dedicated RAID software like SoftRAID.
- Can I daisy chain other devices?
- Yes. The secondary Thunderbolt 5 port supports up to 80Gb/s of daisy-chain bandwidth for up to five additional Thunderbolt or USB4 devices, or an external display up to 8K.
- Is accidental damage covered by the warranty?
- No. Accidental drops, physical damage, and cosmetic wear are not covered by the manufacturer warranty.
Product data
| Brand | OWC |
|---|---|
| Product line | ThunderBay 4 |
| Model | Thunderbolt 5 Enclosure |
| Part number | OWCTB5T4000F |
| Barcode | 810179177089 |
| Drive bays | 4 x 2.5-inch / 3.5-inch SATA |
| Interface | Thunderbolt 5 (80Gb/s) |
| Made in | Taiwan |
| Warranty | 2-year limited |
| Sold by | MegaMac |
Other names for this product
OWC ThunderBay 4 Thunderbolt 5, ThunderBay 4 TB5 0TB DIY Enclosure, 4-bay Thunderbolt 5 SATA storage enclosure, OWCTB5T4000.
Also available
- OWC ThunderBay 4 Thunderbolt 5 Enclosure with SoftRAID – OWCTB5T4000S
- This product – OWC ThunderBay 4 Thunderbolt 5 Enclosure – OWCTB5T4000F
Sold by MegaMac.
