The TerraMaster D9-320 offers nine drive bays for Mac users needing massive local storage capacity. With support for both 2.5-inch and 3.5-inch drives, the enclosure can hold up to 216TB of data when fully loaded with 24TB drives. The unit connects via USB Type-C 3.2 Gen 2 at 10Gbps, which keeps costs down but limits performance compared to Thunderbolt options.

Priced at $499 for just the enclosure, the D9-320 measures 13.1 x 11.6 x 5.3 inches and features extensive ventilation for cooling nine drives simultaneously. The front panel includes ejection buttons for each bay, while the rear houses dual USB ports for daisy-chaining multiple units. Drive sleds are tool-free and support hot-swapping, making drive replacement straightforward without system downtime.

Performance testing showed read speeds around 790MB/s with mechanical drives in RAID configurations, climbing to 890MB/s with SSDs. Write speeds reached approximately 720MB/s for mechanical drives and 820MB/s for SSDs. The unit automatically powers on with the connected Mac, eliminating boot-time file access issues. While the 10Gbps connection and lack of built-in RAID controls may disappoint some users, the D9-320 delivers substantial storage capacity at a reasonable price point for those who need terabytes of accessible data.