https://www.qnap.com/en/product/ts-h1277axu-rp/specs/hardware TS-h1277AXU-RP-R5-16G CPU AMD Ryzen™ 5 7000 series 6-core/12-thread processor, burst up to 5.1 GHz AMD Radeon Graphics CPU Architecture 64-bit x86 Floating Point Unit Encryption Engine (AES-NI) Hardware-accelerated Transcoding System Memory 16 GB UDIMM DDR5 (1x 16 GB) Maximum Memory 192 GB (4 x 48 GB) Memory Slot 4 x UDIMM DDR5 Support optional ECC memory Flash Memory 5GB (Dual boot OS protection) Drive Bay 12 x 3.5-inch SATA 6Gb/s, 3Gb/s Drive Compatibility 3.5-inch SATA hard disk drives 2.5-inch SATA solid state drives Hot-swappable M.2 Slot 2 x M.2 2280 PCIe Gen 5 x2 slots Compatible with NVMe SSD PCIe Gen 3 and above. Please refer to https://www.qnap.com/compatibility/ for compatibility. SSD Cache Acceleration Support GPU pass-through 2.5 Gigabit Ethernet Port (2.5G/1G/100M) 2 (2.5G/1G/100M/10M) 10 Gigabit Ethernet Port 2 x 10GBASE-T (10G/5G/2.5G/1G/100M) Wake on LAN (WOL) Jumbo Frame PCIe Slot 3 Slot 1: Gen 4 x 4 Slot 2: Gen 4 x 8 or Gen 4 x 4* Slot 3: Gen 4 x 4 *Slot 2 provides the width of PCIe Gen4 x8 when Slot 1 is not in use, and provides the width of PCIe Gen4 x4 when Slot 1 is in use. USB 3.2 Gen 2 (10Gbps) Port 2 x Type-A USB 3.2 Gen 2 10Gbps Form Factor 2U Rackmount LED Indicators Power Status, HDD 1-12, M.2 SSD 1-2, Status, LAN, storage expansion port status Buttons Power, Reset Dimensions (HxWxD) 88.6 × 432 × 511.2 mm Excludes ear hook and the protruding part of the Power Supply Unit. Weight (Net) 13 kg Weight (Gross) 19 kg Operating Temperature 0 - 40 °C (32°F - 104°F) Storage Temperature -20 - 70°C (-4°F - 158°F) Relative Humidity 5-95% RH non-condensing, wet bulb: 27°C (80.6°F) Power Supply Unit 550W(x2), 100-240V Power Consumption: HDD Sleep Mode 82.247 W Power Consumption: Operating Mode, Typical 367.65 W Tested with drives fully populated. Fan System fan: 3 x 60mm, 12VDC System Warning Buzzer Standard Warranty 5 Max. Number of Concurrent Connections (CIFS) - with Max. Memory 5000