Synology DS923+ 4GB DiskStation 4-Bay NAS DS923+

Synology Diskstation is a capable 4-bay NAS solution that can be adjusted and expanded as your needs change, with optional support for up to 9 drives, faster networking, and NVMe SSDs for caching or additional storage pools and is backed by 3 year's warranty.
Specification:
-CPU Frequency: AMD Ryzen 2.6Ghz burst up to 3.1GHz
-Hardware Encryption Engine: Yes (AES-NI)
-Floating Point
-Memory: DDR4 4GB
-Internal HDD/SSD: 3.5" or 2.5" SATA x4 , 2x M.2 NVMe 2280SSD (Hard drive not included)
-Hot Swappable HDD
-External HDD Interface: USB 3.0 Port x2 ,eSATA Port x1
-Size (HxWxD): 166x199x223mm
-Weight: 2.28Kg
-LAN: Gigabit x2
-Link Aggregation
-Wake on LAN/WAN
-System Fan: 92x92mm x2
-Wireless Support (dongle)
-Noise Level: 19.3 dB(A)
-Power Recovery
-AC Input Power Voltage: 100V-240V AC
-Power Frequency: 50/60 Hz, Single Phase
-Power Consumption: 44W (Access); 15W (HDD Hibernation)
-Operating Temperature: 5C-35C
-Storage Temperature: -10C-70C
-Relative Humidity: 5%-95% RH
-Maximum Operating Altitude: 6,500 feet