QNAP TS-251B home/SOHO Intel dual-core NAS with a PCIe slot for extending NAS functionality
The TS-251B combines secure data storage and multimedia entertainment into one device. Featuring a PCIe slot, the TS-251B is QNAP’s first home/SOHO NAS that allows you to flexibly extend its functionality and potential applications. The TS-251B supports dual-channel H.264 hardware decoding and transcoding, allowing you to enjoy watching NAS media files smoothly across various devices.
4K media playback and online transcoding; cross-device multimedia viewing via HDMI output or streaming applications.
Remotely access the apps and files on your TS-251B via myQNAPcloud and easily manage and share files.
Hybrid Backup Sync consolidates backup and sync tasks into a single app, providing multiple layers of data protection.
Supports containerized applications and hosting virtual machines with various operating systems.
Snapshots fully record the system status and data. If files are accidentally deleted or modified, you can quickly restore the previously-recorded data.
The PCIe port supports installing a 10GbE network card, a QM2 dual-port M.2 SSD/10GbE card, a USB 3.1 Gen 2 (10Gbps) card, or a wireless network card.
|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|
|Floating Point Unit||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
For dual-DIMM configuration, you must use a pair of identical DDR3L modules.
|Flash Memory||4GB (Dual boot OS protection)|
|Drive Bay||2 x 3.5-inch SATA 6Gb/s, 3Gb/s
The system is shipped without HDD.
|Drive Compatibility||3.5-inch SATA hard disk drives
2.5-inch SATA hard disk drives
2.5-inch SATA solid state drives
|M.2 SSD Slot||Optional via a PCIe adapter|
|SSD Cache Acceleration Support||Yes|
|Gigabit Ethernet Port (RJ45)||1
Expandable with an optional PCIe adapter
|10 Gigabit Ethernet Port||Optional via PCIe expansion card|
Slot 1: PCIe Gen 2 x2
PCIe bandwidth limitations will restrict the NAS 10GbE performance.
|USB 2.0 port||3|
|USB 3.0 port||2|
|USB 3.1 Gen 2 (10Gbps) Port||Optional via a PCIe expansion card|
|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)|
|LED Indicators||Power/Status, LAN, USB, HDD1-2|
|Buttons||Power, USB copy, Reset|
|Dimensions (HxWxD)||168 × 105 × 226 mm|
|Weight (Net)||1.53 kg|
|Weight (Gross)||2.63 kg|
|Operating temperature||0 - 40 °C (32°F - 104°F)|
|Relative Humidity||5-95% RH non-condensing, wet bulb: 27˚C (80.6˚F)|
|Power Supply Unit||65W adapter, 100-240V|
|Power Consumption: HDD Sleep Mode||8.08 W|
|Power Consumption: Operating Mode, Typical||15.25 W|
|Fan||1 x 70mm, 12VDC|
|Sound Level||16.7 db(A)|
|Kensington Security Slot||Yes|