F5-422: POWERFUL HARDWARE: Apollo Quad-core 1.5GHz CPU, 4GB of RAM (expandable up to 8GB).
F5-422: 1x10GbE RJ45 port, blazingly fast speed of 670MB/s reading and 650MB/s writing. Dual 1GbE LAN with failover and Link Aggregation support.
F5-422: Advanced Btrfs file system offering 71,680 system-wide snapshots and 1,024 snapshots per shared folder; Real-time hardware transcoding of up to two concurrent 4K video streaming.
F5-422: Features an aluminum-alloy shell and intelligent temperature control ultra-quiet fan, good in heat dissipation. Maximum Internal Raw Capacity: 90 TB (18 TB drive x 5). Compatible with 3.5 and 2.5 SATA HDD, 2.5 SATA SSD. For better and stable performance, please use dedicated NAS hard drives.
D4-300: Adopts real SUPERSPEED USB3.1(Gen1) Type-C interface, the read/write speed is up to 410MB/s. Copy a 1GB video in only 2-3 seconds. D4-300 can support four (4) SATA hard drives, is compatible with 18TB 3.5 inch SATA hard drive in each single bay, and has a total storage capacity up to 72TB.