Synology RS422+ RackStation 4-Bay NAS ( RAIL KIT optional ) Check HDD compatibility list. RS422+

Synology RackStation RS422+ is a 4-bay rackmount NAS enclosed in a compact 1U chassis. Powered by Synology DSM OS, it offers an affordable all-in-one solutions for data sharing, synchronization, and backup to small businesses and home lab owners looking to meet their daily data management needs.
Specification:
-CPU Frequency: AMD Ryzen R1600 dual-core 2.6Ghz max boost clock up to 3.1GHz
-Hardware Encryption Engine
-Memory: DDR4 2GB
-Internal HDD/SSD: 3.5" or 2.5" SATA/ SSD x4 (Hard drive not included)
-Max Internal Capacity: x 4 HDD (Capacity may vary by RAID types)
-Hot Swappable HDD
-External HDD Interface: USB 3.2 Gen 1 Port X 1
-Size (HxWxD): 44x430x295.5mm
-Weight: 4.38Kg
-LAN: Gigabit x2
-Link Aggregation
-System Fan: 40x40mm x3
-Wireless Support (dongle)
-Noise Level: 22.6 dB(A)
-Power Recovery
-AC Input Power Voltage: 100V-240V AC
-Power Frequency: 50/60 Hz, Single Phase
-Power Consumption: 37W (Access); 14W (HDD Hibernation)
-Operating Temperature: 5C-35C
-Storage Temperature: -10C-70C
-Relative Humidity: 5%-95% RH
-Maximum Operating Altitude: 6,500 feet