Synology 4-Bay DS923+ DiskStation

CPU: AMD Ryzen™ R1600 dual-core (4-thread), max. boost clock up to 3.1 GHz
Memory: 4 GB DDR4 ECC SODIMM (expandable up to 32 GB)
Compatible drive types:
• 4 x 3.5" or 2.5" SATA HDD/SSD (drives not included)
• 2 x M.2 2280 NVMe SSD (drives not included)
• Synology only guarantees full functionality, reliability, and performance for Synology drives listed on the compatibility list
Hot swappable drives: Yes
External ports:
• 2 x USB 3.2 Gen 1 ports
• 1 x Expansion port (eSATA)
Form factor: Desktop
Size (HxWxD): 166 x 199 x 223 mm
Weight: 2.24 kg
LAN ports: 2 x 1GbE RJ-45
Wake on LAN/WAN: Yes
Scheduled power on/off: Yes
System fans: 2 x (92 x 92 x 25 mm)
AC input power voltage: 100 V to 240 V AC
Power frequency: 50/60 Hz, single phase
Operating environment:
•  Temperature: 0°C to 40°C (32°F to 104°F)
•  Relative humidity: 8% to 80% RH
Storage environment:
•  Temperature: -20°C to 60°C (-5°F to 140°F)
•  Relative humidity: 5% to 95% RH
Maximum operating altitude 5,000 m (16,400 ft)