QNAP TS-453D 4 Bay Celeron Quad Core 8GB NAS

QNAP TS-453D 4 Bay Celeron Quad Core 8GB NASSPECIFICATIONS:CPUIntel Celeron J4125 quad-core 2.0 GHz processor (burst up to 2.7 GHz)CPU Architecture64-bit x86Graphic ProcessorsIntel HD Graphics 600Floating Point UnitEncryption Engine (AES-NI)Hardware-accelerated TranscodingSystem Memory8 GB SO-DIMM DDR4 (2 x 4 GB)Maximum Memory8 GB (2 x 4 GB)Memory Slot2 x SO-DIMM DDR4For dual-DIMM configuration, you must use a pair of identical DDR4 modules.Flash Memory4GB (Dual boot OS protection)Drive Bay4 x 3.5-inch SATA 6Gb/s, 3Gb/sThe system is shipped without HDD.For the HDD compatibility list, please visit https://www.qnap.com/compatibility/ Drive Compatibility3.5-inch SATA hard disk drives2.5-inch SATA hard disk drives2.5-inch SATA solid state drivesHot-swappableM.2 SSD SlotOptional via a PCIe adapterSSD Cache Acceleration Support2.5 Gigabit Ethernet Port (2.5G/1G/100M)25 Gigabit Ethernet Port (5G/2.5G/1G/100M)Optional via PCIe expansion card10 Gigabit Ethernet PortOptional via PCIe expansion cardOptional via PCIe expansion cardJumbo FramePCIe Slot1Slot 1: PCIe Gen 2 x2PCIe bandwidth limitations will restrict the NAS 10GbE performance.USB 2.0 port3USB 3.2 Gen 1 port2USB 3.2 Gen 2 (10Gbps) PortOptional via a PCIe adapterIR Sensor (RM-IR004)HDMI Output1, HDMI 2.0 (up to 4096 x 2160 @ 60Hz)Form FactorTowerLED IndicatorsPower/Status, LAN, USB, HDD1-4ButtonsPower, USB copy, ResetDimensions (HxWxD)168 170 226 mmWeight (Net)2.37 kgWeight (Gross)3.6 kgOperating temperature0 - 40 C (32F - 104F)Relative Humidity5-95% RH non-condensing, wet bulb: 27C (80.6F)Power Supply Unit90W adapter, 100-240VPower Consumption: HDD Sleep Mode11.3 WPower Consumption: Operating Mode, Typical25.98 WTested with drives fully populated.Fan1 x 120mm, 12VDCSound Level21.1 db(A)System WarningBuzzerKensington Security SlotMax. Number of Concurrent Connections (CIFS)800