The No-Compromises 2.5GbE NAS Enthusiast-grade NAS with two, four or six bays Quad-Core 10 nm Intel Celeron N5105 CPU - 31% more performance over Gemini Lake Superfast 2.5-Gigabit Ethernet ports Flexible PCIe slot for M.2 SSDs Supports PCIe 3.0 SSDs for up to twice the performance of PCIe 2.0. Uses DDR4-2933 with 40% more performance USB 3.2 Gen2 ports – 10Gbps speed Enjoy, download, upload and stream content with 4K transcoding Increased ventilation for SSDs Supports Wake on LAN and Wake on WAN Specification Hardware Specifications CPU CPU Model Intel Celeron N5105 CPU Architecture x64 64-bit CPU Frequency Quad-Core 2.0GHz (burst up 2.90 GHz) Memory Memory 4GB SO-DIMM DDR4 Memory Module Pre-installed 4GB (1x 4GB) Total Memory Slots 2 Memory Expandable up to 16GB (2x 8GB) Support mixed capacity Flash Memory 8GB eMMC Storage Drive Bays 2 M.2 Drive Slots 4 Compatible Drive Type 3.5" SATA HDD 2.5" SATA HDD 2.5" SATA SSD M.2 2280 NVMe M.2 PCIe Interface PCIe 3.0 x1 Maximum Drive Bays with 10 Supports Hot Swappable Drives External Ports Expansion 2x USB 3.2 Gen 2 (10Gbps) Network 2x 2.5 Gigabit Ethernet (2.5G/1G/100M) Multimedia Output 1x HDMI 2.0b Others System Fan 1x 70mm Infrared Receiver Power Supply Unit / Adapter 65W x1 Input Power Voltage 100V to 240V AC Certification FCC, CE, VCCI, BSMI, C-TICK, KCC, BIS, CCC, UKCA Warranty 3 Years Operation Power Consumption 21 W (Operation);13.5 W (Disk Hibernation);0.79 W (Sleep Mode) Noise Level 17.7dB (HDD idle) Operation Temperature 0°C~40°C (32°F~104°F) Storage Temperature -20°C~70°C (-4°F~158°F) Humidity 5% to 95% RH Size and Weight Size 163.5 (H) x 108 (W) x 230 (D) mm Weight 2 kg / 4.4 lb