EN
The TS-251D-4G server combines the functions of secure storage and a multimedia entertainment center in a single device. The TS-251D server is equipped with a PCIe slot that allows flexible expansion of NAS functionality and potential applications. Additional applications include QNAP's artificial intelligence-assisted QuMagie photo management application, which uses intelligent image recognition to group similar photos into "People," "Things" and "Places" albums. The TS-251D server is equipped with an HDMI port for streaming media throughout the home. The server supports dual-channel decoding and hardware transcoding, allowing media files from the NAS server to play smoothly on various devices.
The PCIe port can be used to install a 10GbE/5GbE/2.5GbE network expansion card, QM2 card, USB 3.2 Gen 2 (10Gbps) card or wireless network card. Share 4K media playback and transcoding online, allowing media to be viewed on different devices via HDMI output or streaming apps.
The TS-251D server features a 2.0GHz dual-core Intel® Celeron® J4025 processor (with acceleration to 2.9GHz), DDR4 RAM (max. 8GB) and one Gigabit LAN port, while support for SATA 6Gb/s hard drives and network expansion cards enables excellent read/write performance.
Advanced Intel® UHD Graphics supports dual-channel 4K hardware decoding and real-time transcoding, allowing video content to be converted to universal file formats for seamless playback on a variety of devices*.
QNAP provides a range of multimedia applications.
Features / filters | |
AC input frequency | 50 - 60 |
AC input voltage | 100 - 240 |
Access Control List (ACL) | Yes |
Auto-rebuild | Yes |
Backup features | Cloud, USB drive |
Backup function | Yes |
Bad block scan | Yes |
Browser supported | Apple Safari 7+, Google Chrome, Microsoft Internet Explorer 10+, Mozilla Firefox |
Built-in FTP server | Yes |
Buzzer | Yes |
Cable lock slot | Yes |
Cable lock slot type | Kensington |
Cables included | AC, LAN (RJ-45) |
Chassis type | Tower |
Conflict-Free processor | Yes |
Cooling type | Active |
CPU configuration (max) | 1 |
Depth | 226 |
Device class | Home & Home Office |
DHCP client | Yes |
DHCP server | Yes |
Disk roaming | Yes |
Disk scan | Yes |
Embedded options available | No |
Enhanced Intel SpeedStep Technology | Yes |
Ethernet LAN | Yes |
Ethernet LAN (RJ-45) ports | 1 |
Ethernet LAN data rates | 1000 |
Execute Disable Bit | Yes |
External power adapter | Yes |
Fan diameter | 7 |
Fan voltage | 12 |
Flash memory | 4000 |
Harmonized System (HS) code | 84714100 |
HDMI ports quantity | 1 |
HDMI version | 2.0 |
Height | 168 |
Hot spare | Yes |
Hot-swap drive bays | Yes |
Idle States | Yes |
Installed storage drive type | No |
Intel 64 | Yes |
Intel Enhanced Halt State | Yes |
Intel Identity Protection Technology version | 1.00 |
Intel Secure Key Technology version | 1.00 |
Intel Smart Response Technology version | 0.00 |
Intel Virtualization Technology (VT-x) | Yes |
Intel Virtualization Technology for Directed I/O (VT-d) | Yes |
Intel VT-x with Extended Page Tables (EPT) | Yes |
Intel® AES New Instructions (Intel® AES-NI) | Yes |
Intel® Anti-Theft Technology (Intel® AT) | No |
Intel® Hyper Threading Technology (Intel® HT Technology) | No |
Intel® Identity Protection Technology (Intel® IPT) | Yes |
Intel® OS Guard | Yes |
Intel® Quick Sync Video Technology | Yes |
Intel® Secure Key | Yes |
Intel® Smart Response Technology | No |
Intel® Turbo Boost Technology | No |
Internal memory | 4 |
Internal memory type | DDR4 |
iSCSI support | Yes |
Jumbo frames support | Yes |
LED indicators | HDD, LAN, Power, Status, USB |
Link aggregation | Yes |
Linux operating systems supported | Yes |
Mac operating systems supported | Mac OS X 10.10 Yosemite, Mac OS X 10.11 El Capitan, Mac OS X 10.12 Sierra, Mac OS X 10.13 High Sierra, Mac OS X 10.14 Mojave, Mac OS X 10.15 Catalina, Mac OS X 10.7 Lion, Mac OS X 10.8 Mountain Lion, Mac OS X 10.9 Mavericks |
Maximum internal memory supported by processor | 8 |
Maximum number of PCI Express lanes | 6 |
Maximum on-board graphics card memory | 8 |
Maximum RAM supported | 8 |
Memory form factor | SO-DIMM |
Memory slots | 2 |
Memory types supported by processor | DDR4-SDRAM,LPDDR4-SDRAM |
Multilingual support | Yes |
Noise level | 16.7 |
Number of displays supported (on-board graphics) | 3 |
Number of execution units | 12 |
Number of fans | 1 |
Number of M.2 (M & B) slots | 1 |
Number of power supply units | 1 |
Number of screws | 14 |
Number of storage drives supported | 2 |
On-board graphics card base frequency | 250 |
On-board graphics card burst frequency | 700 |
On-board graphics card DirectX version | 12.0 |
On-board graphics card dynamic frequency (max) | 700 |
On-board graphics card ID | 0x3185 |
On-board graphics card model | Intel® UHD Graphics 600 |
On/off switch | Yes |
Online RAID expansion | Yes |
Online RAID migration | Yes |
Operating relative humidity (H-H) | 5 - 95 |
Operating system installed | QNAP QTS |
Operating system version | 5.0.0 |
Operating temperature (T-T) | 0 - 40 |
Package weight | 2.58 |
Password authentication | Yes |
PCI Express configurations | 1x2,1x2+2x1,1x4,2x1,4x1 |
PCI Express slots version | 2.0 |
Power consumption (sleep) | 8.08 |