NAS QNAP TS-251B: 2-Bay NAS, Intel Celeron Apollo Lake J3355 dual-core 2.0GHz (up to 2.5GHz), 4GB DDR3L SODIMM RAM (1x4GB, 2 DIMM slots, max 8GB total)

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Thiết bị lưu trữ NAS QNAP TS-251B-4G
Hardware Specs
CPU Intel® Celeron® J3355 dual-core 2.0 GHz processor (burst up to 2.5 GHz)
CPU Architecture 64-bit x86
Graphic Processors Intel® HD Graphics 500
Encryption Engine YES (AES-NI)
Hardware-accelerated Transcoding YES
System Memory 4 GB SO-DIMM DDR3L (1 x 4 GB)
Maximum Memory 8 GB (2 x 4GB)
Memory Slot 2 x SO-DIMM DDR3L
Flash Memory 4GB (Dual boot OS protection)
Drive Bay 2 x 3.5-inch SATA 6Gb/s, 3Gb/s
Drive Compatibility 3.5-inch SATA hard disk drives
2.5-inch SATA hard disk drives
2.5-inch SATA solid state drives
Hot-swappable YES
M.2 SSD Slot Optional via a PCIe adapter
SSD Cache Acceleration Support YES
Gigabit Ethernet Port (RJ45) 1
PCIe Slot 1: PCIe Gen 2 x2
USB 2.0 port 3
USB 3.0 port 2
USB 3.1 port Optional via a PCIe expansion card
IR Sensor QNAP RM-IR004
HDMI Output 1, HDMI 1.4b (up to 3840 x 2160 @ 30Hz)
Audio Input 2 x 3.5mm dynamic microphone input jacks
Audio Output 1 x built-in speaker

1 x 3.5mm line out jack (for amplifier or headphone amplifier)

Form Factor Tower
Dimensions (HxWxD) 168 × 105 × 226 mm
Weight 1.53 kg ~ 2.63 kg
Power Supply Unit External Power Adapter, 65W, 100-240V
Software Specs
Storage Management
  • 0, 1, JBOD, Single
  • RAID hot spare and global hot spare
  • RAID rebuild speed customization