• Mac Pro Rack (Early 2020) Model ID: MacPro 7.1
• Mac Pro Rack (Late 2019) Model ID: MacPro 7.1
• Mac mini (Late 2020) Model ID: Macmini91
• Mac mini (Late 2018) Model ID: Macmini81
• iMac Pro (27-inch Late 2017) Model ID: iMacPro11
• Mac w/Retina 5K display (27-inch Mid 2020) Model ID: iMac201; iMac202
• iMac w/Retina 5K display (27-inch Early 2019) Model ID: iMac191
• iMac w/Retina 4K display (21.5-inch Early 2019) Model ID:iMac192
• iMac w/Retina 5K display (27-inch Mid 2017) Model ID:iMac183
• iMac w/Retina 4K display (21.5-inch Mid 2017) Model ID:iMac182
• iMac (21.5-inch Mid 2017) Model ID:iMac181
• MacBook Pro (13-inch Touch Late 2020) Model ID: MacBookPro171
• MacBook Pro (13-inch Touch Mid 2020) Model ID: MacBookPro163
• MacBook Pro (13-inch Touch Mid 2020) Model ID: MacBookPro162
• MacBook Pro (16-inch Touch Mid 2019) Model ID: MacBookPro161
• MacBook Pro (15-inch Touch Mid 2019) Model ID: MacBookPro151; MacBookPro153
• MacBook Pro (13-inch Touch Mid 2019) Model ID: MacBookPro154
• MacBook Pro (13-inch Touch Mid 2019) Model ID: MacBookPro152
• MacBook Pro (15-inch Touch Mid 2018) Model ID: MacBookPro151
• MacBook Pro (13-inch Touch Mid 2018) Model ID: MacBookPro152
• MacBook Pro (15-inch Touch Mid 2017) Model ID: MacBookPro143
• MacBook Pro (13-inch Touch Mid 2017) Model ID: MacBookPro142
• MacBook Pro (13-inch Retina display Mid 2017) Model ID: MacBookPro141
• MacBook Pro (15-inch Touch Late 2016) Model ID: MacBookPro133
• MacBook Pro (13-inch Touch Late 2016) Model ID: MacBookPro132
• MacBook Pro (13-inch Retina display Late 2016) Model ID: MacBookPro131
• MacBook Air (13-inch Late 2020) Model ID: MacBookAir101
• MacBook Air (13-inch Early 2020) Model ID: MacBookAir91
• MacBook Air (13-inch Mid 2019) Model ID: MacBookAir82
• MacBook Air (13-inch Late 2018) Model ID: MacBookAir8.1
• PC Compatible

The Speed You Need

All New Design for Power and Performance

ThunderBay 4 OWC's flagship 4-bay RAID powerhouse is bigger and faster than ever before. Now with the unbelievable performance of Thunderbolt 3 - up to 1527MB/s sustained performance - it's the ultimate workhorse external storage solution.

Not only faster the new ThunderBay 4 Thunderbolt 3 is now natively compatible with both 2.5" and 3.5" drives and with a redesigned chassis it's even cooler and quieter too.

Edit Experiment Create Design

Designed with performance in mind and engineered to harness the power of Thunderbolt 3 ThunderBay 4 is an incredibly flexible external solution with the throughput to support multi-stream compressed 4K video and other bandwidth-intensive operations.

ThunderBay 4 is highly configurable to perfectly match your performance needs. Choose between traditional hard drives or Solid State Drives. Use each drive independently or in the RAID configuration of your choice for the optimal balance of performance and data-redundancy. Get the most out of your storage take the brakes off your workflow and do more with a ThunderBay 4.

Monitoring + Notifications

Easily setup drive monitoring and e-mail notifications to keep you informed about your ThunderBay's performance and drive health. Helping you to maintain mission critical workflows.

Certified and Tested

Each ThunderBay 4 undergoes OWC's multi-hour drive "burn-in" performance certification procedure prior to shipping. This ensures your ThunderBay 4 arrives operating properly ready for demanding use.

Backed by OWC

You can rely on OWC's award-winning U.S.-based support for the ThunderBay 4 solution. Plus ThunderBay 4 comes with an OWC Limited Warranty.

4 drive bays plus so much more.

Time-Tested Cooling

Built on OWC's time-tested enclosure cooling technology ThunderBay 4 utilizes an open "flow-thru" vented design with an oversized 92 mm low-turbulence noise-quieting fan to keep the drives running cool and reliably.

Multi-Drive

Daisy-chain up to six ThunderBay 4s for massive storage capabilities and increased performance or connect multiple ThunderBay 4s to multiple Thunderbolt 3 ports to achieve exponential speed capabilities.

Vibration Dampened

ThunderBay 4's drive isolating design reduces sonic resonance and is aided by over-sized rugged vibration-absorbing non-skid feet.

DisplayPort 1.2 Support

Dual Thunderbolt 3 ports let you connect the display of your choice that your computer can support including 4K displays.

OWC Thunderbolt Cable

ThunderBay 4 comes with a certified OWC Thunderbolt 3 cable.