4 Things to Know About the TerraMaster F4-423's USB Expansion
The F4-423 supports external drives and TerraMaster expansion units via USB 3.2 Gen 2. This gives you 10 Gbps bandwidth, which is enough for bulk storage or backups.
USB expansion is less elegant than a dedicated expansion slot. But it works reliably without extra hardware or configuration.
You can daisy-chain multiple USB drives or expansion units. The F4-423 won’t run out of bays as long as you have USB ports available.
USB 3.2 Gen 2 is backward compatible with older USB standards. You can connect slower drives without issues, though speeds will drop to match the device.