Synology 4-Bay 1U Rackmount NAS, AMD Ryzen™ V1500B CPU, 4GB DDR4 ECC Memory, 4 x 3.5-Inch SATA HDD or 2.5-Inch SATA SSD Drive Bays, 4 Gigabit Ethernet Ports, 1 PCIe Slot, 150W PSU | RS826+

Specifications Model Synology RS826+ CPU Model AMD Ryzen V1500B CPU Quantity 1 CPU Cores 4 CPU Threads 8 CPU Architecture 64-bit CPU Frequency 2.2 GHz Hardware Encryption Engine Yes System Memory 4 GB DDR4 ECC SODIMM Pre-Installed Memory 4 GB (4 GB × 1) Total Memory Slots 2 Maximum Memory Capacity 32 GB (16 GB × 2) Drive Bays 4 × 3.5" SATA HDD or 2.5" SATA SSD Maximum Drive Bays with Expansion Unit 8 (RX426 × 1) Hot-Swappable Drive Yes RJ-45 1GbE LAN Ports 4 USB 3.2 Gen 1 Ports 2 Expansion Port 1 Expansion Port Type USB Type-C PCIe Expansion 1 × Gen3 x8 Slot (x4 Link) Form Factor 1U Dimensions (H × W × D) 44 × 480 × 492.6 mm Weight 6.4 kg Rack Installation Support 4-Post 19" Rack (Synology Rail Kit - RKM114/RKS-02) Rail Kit Sold Separately System Fans 40 × 40 mm, 3 pcs Fan Speed Modes Full-Speed Mode, Cool Mode, Quiet Mode Power Recovery Yes Noise Level 26.5 dB(A) Scheduled Power On/Off Yes Wake on LAN/WAN Yes Power Supply Unit 150 W Redundant Power Supply No AC Input Voltage 100–240 V AC Power Frequency 50/60 Hz, Single Phase Power Consumption 37.73 W (Access), 15.57 W (HDD Hibernation) British Thermal Unit 128.66 BTU/hr (Access), 53.09 BTU/hr (HDD Hibernation) Operating Temperature 0°C to 35°C (32°F to 95°F) Storage Temperature -20°C to 60°C (-5°F to 140°F) Operating Humidity 8% to 80% RH Storage Humidity 5% to 95% RH Certifications FCC, CE, BSMI, VCCI, RCM, UKCA, EAC, CCC, KC, BIS, UL Environment RoHS Compliant