The TS-251D integrates secure data storage and multimedia entertainment into one device. Featuring a PCIe slot, the TS-251D allows you to flexibly extend NAS functionality and potential applications. You can enhance overall system performance by installing a QNAP QM2 card for M.2 SSD caching/10GbE connectivity combined with Qtier auto-tiering storage and installing a 10GbE/5GbE/2.5GbE network expansion card. In addition, TS-251D can be used with QNAP’s smart AI photo management application, QuMagie, which integrates AI image recognition to group similar photos together in album “People”, “Things” and “Places”. The TS-251D features an HDMI slot to stream multimedia throughout your home. The TS-251D supports dual-channel hardware decoding and transcoding, allowing you to view NAS media files smoothly across various devices.
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The PCIe port supports the installation of a 10GbE/5GbE/2.5GbE/ network expansion card, a QM2 card, a USB 3.2 Gen 2 (10Gbps) card, or a wireless network card.
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Provide 4K media playback and online transcoding, while enabling cross-device multimedia viewing via HDMI output or streaming applications.
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Snapshots fully record the system status and data. If files are accidentally deleted or modified, you can quickly restore previously-recorded data.
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QNAP provides a wide range of multimedia applications. You can manage all apps through the Multimedia Console to simplify management.
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HBS backs up and synchronizes NAS data to other remote servers or cloud storage, while QuDedup deduplicates data at the source to reduce network bandwidth and storage space.
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Use VJBOD (Virtual JBOD) to expand your storage capacity by using the unused storage of other QNAP NAS. Connect up to two TR series USB storage enclosure.
CPU Intel® Celeron® J4025/J4005 dual-core 2.0 GHz processor CPU Architecture 64-bit x86 Graphic Processors Intel® HD Graphics 600 Floating Point Unit Encryption Engine (AES-NI) Hardware-accelerated Transcoding System Memory 4 GB SO-DIMM DDR4 (1 x 4 GB) Maximum Memory 8 GB (2 x 4GB) Memory Slot 2 x SO-DIMM DDR4 For dual-DIMM configuration, you must use a pair of identical DDR4 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.
For the HDD compatibility list, please visitDrive Compatibility 3.5-inch SATA hard disk drives
2.5-inch SATA hard disk drives
2.5-inch SATA solid state drivesHot-swappable M.2 SSD Slot Optional via a QM2 PCIe adapter SSD Cache Acceleration Support Gigabit Ethernet Port (RJ45) 1 Expandable with an optional PCIe adapter5 Gigabit Ethernet Port (5G/2.5G/1G/100M) Expandable with an optional PCIe adapter 10 Gigabit Ethernet Port Expandable with an optional PCIe adapter Wake on LAN (WOL) Jumbo Frame PCIe Slot 1
Slot 1: PCIe Gen 2 x4PCIe bandwidth limitations will restrict the NAS 10GbE performance.USB 2.0 port 3 USB 3.2 Gen 1 port 2 USB 3.2 Gen 2 (10Gbps) Port Optional via a PCIe expansion card IR Sensor (Optional QNAP RM-IR004 remote control) HDMI Output 1, HDMI 2.0 Form Factor Tower LED Indicators Power/Status, LAN, USB, HDD1-2 Buttons Power, USB copy, Reset Dimensions (HxWxD) 168 × 105 × 226 mm Weight (Net) 1.48 kg Weight (Gross) 2.58 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 External Power Adapter, 65W, 100-240V Power Consumption: HDD Sleep Mode 8.08 W Power Consumption: Operating Mode, Typical 15.25 W Tested with drives fully populated.Fan 1 x 70mm Sound Level 16.7 db(A) System Warning Buzzer Kensington Security Slot Max. Number of Concurrent Connections (CIFS) 800
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