The Rackmount Workflow Game-Changer
Rack Up Workflow Flexibility
Future Ready
Ideal for All Rackmount Environments
- In School: perfect for taming ever-growing collections of digital files with easy integration and future drive capacity and performance scalability.
- At Work: adds Thunderbolt speed and swappable drives to server closets, server rooms, or colocation center backup capabilities.
- On Stage: handles all the storage and peripheral connectivity needs “front of house” pros require for live performances.
- On Set: easily fits into mobile DIT carts to capture multi-stream, hi-res footage at full framerate while daisy-chaining up to five additional Thunderbolt devices.
- In Studio: expands storage and connectivity options of fixed racks.
- At Home: great for installers creating a high-performance home entertainment server closet.
Do It U.2 It
A Complete Swap and Share Ecosystem
- OWC U2 ShuttleOne: Convert an NVMe M.2 “blade” style SSD into a swappable 2.5-inch U.2 SSD with the peace of mind that your drive – and its content – are protected by the full metal, heat dissipating adapter.
- OWC U2 Shuttle: Combine four NVMe M.2 SSDs into the world’s first 3.5-inch U.2 carrier shuttle to create a swappable, massive capacity RAID solution.
- OWC Helios 3S with Interchange System: Create an external Thunderbolt powered set to post U.2 solution that safeguards your data while lowering shipping costs.
- OWC Mercury Pro U.2 Dual: Put blazing fast Thunderbolt powered storage and backup on a desktop with a compact two bay footprint that can use U2 ShuttleOne and U2 Shuttles.
- OWC ThunderBay Flex 8: Take control of your media workflow with the world’s first 3-in-1 Thunderbolt storage, docking, and PCIe expansion desktop solution. Easily swaps U2 ShuttleOne and U2 Shuttles to/from the Flex 1U4.
Ready to Rack
RAID Made Easy
Certified for Demanding Use
Secure Your Connections
OWC, Trusted by Pros & Enthusiasts the World Over
- SAS drives are supported with SAS drive controller card (available separately).
- Up to four U.2 drives are supported. M.2 drives are also supported with M.2 to U.2 adapter such as the OWC U2 Shuttle and OWC U2 ShuttleOne (available separately).
- Full DisplayPort 1.4 capabilities depends on host computer support of DisplayPort 1.4 specification through its Thunderbolt 3 connection, host computer GPU capabilities, and connecting cable capabilities.
- Thunderbolt 2/Thunderbolt compatibility requires a certified Thunderbolt 3 (USB-C) to Thunderbolt 2 (mDP) adapter and a Thunderbolt 2 cable (available separately). This configuration provides data transfer at up to 20Gb/s but does not support notebook charging.
OWC Flex 1U4 External HDD Specs
| Storage Capacity | 56 TB |
| Included Drives | 4 x 14 TB 3.5″ HDD |
| Cache Memory per Drive | 512 MB |
| Initial RAID Configuration | None |
| Rotational Speed | 7200 rpm |
| Number of Bays | 4 x 2.5″/3.5″ |
| Pre-Format | None |
| I/O | 2 x USB Type-C (Thunderbolt 3 (40 Gb/s)) 2 x USB Type-C (USB 3.1 / USB 3.2 Gen 2 (10 Gb/s)) 3 x USB Type-A (USB 3.1 / USB 3.2 Gen 2 (10 Gb/s)) 1 x DisplayPort (DisplayPort 1.4) |
| Compatible Drive Interface | SAS (Unspecified Version), SATA (Unspecified Version), NVMe, U.2 |
| Form Factor | Rackmount (1 RU) |
| RAID | Yes |
| Hot-Swap Support | Yes |
| PCI Expansion | 1 x PCIe 3.0 x16 (x4 Electrical) |
| Supported PCIe Form Factor | Low-Profile, Half-Length |
| Transfer Rates | 5000 MB/s 1250 MB/s |
| OS Compatibility | macOS 12 macOS 11 macOS 10.15 *As of April, 2022: Check with manufacturer for the most up-to-date compatibility |
| Encryption | None |
| AC Input Power | 90 to 264 VAC, 50 / 60 Hz at 1.8 to 3.5 A |
| Power Source | AC Adapter |
| PSU Wattage | 1 x 300 W |
| Operating Temperature | 42 to 67°F / 10 to 35°C |
| Operating Humidity | 8 to 90% (Non-Condensing) |
| Storage Temperature | -40 to 149°F / -40 to 65°C |
| Storage Humidity | 5 to 95% (Non-Condensing) |
| Certifications | BSMI, CE, FCC, RCM, VCCI *as per Manufacturer |
| Status Monitoring | LED Indicator |
| Cooling | 3 x Fans |
| Cable Length | 2.3′ / 0.7 m |
| Dimensions | 18 x 16.9 x 1.7″ / 45.7 x 42.9 x 4.3 cm |
| Weight | 16.3 lb / 7.4 kg without Drives |








