QNAP TS-251D NAS Tower Intel® Celeron® J4005 2 GB DDR4 0 TB QNAP QTS White

Storage drives installed ℹ️

❌

Total installed storage capacity

0 TB

Number of storage drives installed ℹ️

0

Number of storage drives supported ℹ️

2

Installed storage drive type ℹ️

❌

Supported storage drive types ℹ️

HDD & SSD

Storage drive capacity ℹ️

0 GB

Supported storage drive interfaces

Serial ATA II, Serial ATA III

Storage drive sizes supported ℹ️

3.5"

Number of M.2 (M & B) slots

1

RAID support ℹ️

✅

RAID levels ℹ️

0, 1, JBOD

Online RAID migration

✅

Online RAID expansion

✅

RAID rebuild

✅

Hot-swap drive bays ℹ️

✅

Supported file systems

FAT32, HFS+, NTFS, ext3, ext4

Bad block scan

✅

Disk roaming ℹ️

✅

Processor manufacturer ℹ️

Intel

Processor family ℹ️

Intel® Celeron®

Processor model ℹ️

J4005

Processor frequency ℹ️

2 GHz

Processor boost frequency ℹ️

2.7 GHz

Processor cores ℹ️

2

Processor threads

2

Processor cache

4 MB

CPU configuration (max)

1

PCI Express configurations

1x2, 1x2+2x1, 1x4, 2x1, 4x1

PCI Express slots version

2.0

Processor codename

Gemini Lake

Processor lithography ℹ️

14 nm

Processor operating modes ℹ️

64-bit

Processor package size

25 x 24 mm

Processor socket ℹ️

BGA 1090

Tjunction

105 °C

Thermal Design Power (TDP)

10 W

On-board graphics card model ℹ️

Intel® UHD Graphics 600

Maximum internal memory supported by processor

8 GB

Conflict-Free processor ℹ️

✅

Internal memory ℹ️

2 GB

Internal memory type ℹ️

DDR4

Maximum RAM supported

8 GB

Memory slots ℹ️

2

Memory form factor ℹ️

SO-DIMM

Flash memory

4000 MB

Ethernet LAN ℹ️

✅

Ethernet LAN data rates ℹ️

1000 Mbit/s

Wi-Fi ℹ️

❌

DHCP client ℹ️

✅

DHCP server ℹ️

✅

Jumbo frames support

✅

iSCSI support

✅

Wake-on-LAN ready

✅

Supported network protocols ℹ️

TCP/IP, PTP, L2TP/IPSec, OpenVPN, QBelt(, FTP, SFTP, TFTP

Link aggregation

✅

WLAN adapter supported

✅

Ethernet LAN (RJ-45) ports ℹ️

1

USB port ℹ️

✅

USB 2.0 ports quantity ℹ️

3

USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity

2

Fiber ports quantity ℹ️

0

HDMI ports quantity ℹ️

1

HDMI version

2.0

On-board graphics card base frequency

250 MHz

On-board graphics card burst frequency

700 MHz

On-board graphics card dynamic frequency (max)

700 MHz

On-board graphics card DirectX version

12.0

On-board graphics card ID

0x3185

Maximum on-board graphics card memory

8 GB

Number of displays supported (on-board graphics) ℹ️

3

Chassis type ℹ️

Tower

Cooling type ℹ️

Active

Product colour ℹ️

White

Number of fans ℹ️

1 fan(s)

Fan diameter ℹ️

7 cm

LED indicators

HDD, LAN, Power, Status, USB

Cable lock slot ℹ️

✅

Cable lock slot type

Kensington

Type ℹ️

NAS

Device class ℹ️

Home & Home Office

Backup function ℹ️

✅

Backup features

Cloud, USB drive

Buzzer

✅

Multilingual support

✅

Noise level ℹ️

16.7 dB

Third-party support

✅

Snapshot

✅

Web-based management ℹ️

✅

Security algorithms ℹ️

256-bit AES, FIPS 140-2, HTTPS, SNMPv3, SSH, SSL/TLS

Access Control List (ACL)

✅

Reset button

✅

On/off switch ℹ️

✅

Built-in FTP server

✅

Browser supported ℹ️

Apple Safari 7+, Google Chrome, Microsoft Internet Explorer 10+, Mozilla Firefox

System log

✅

Hot spare

✅

S.M.A.R.T. support

✅

Share folder

CIFS/SMB

Universal Plug and Play (UPnP)

✅

USB copy function

✅

Operating system installed ℹ️

QNAP QTS

Operating system version ℹ️

5.0.0

Windows operating systems supported ℹ️

Windows 10, Windows 7, Windows 8

Linux operating systems supported ℹ️

✅

Mac operating systems supported ℹ️

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

Server operating systems supported

Windows Server 2003, Windows Server 2008 R2, Windows Server 2012, Windows Server 2012 R2, Windows Server 2016, Windows Server 2019

Power supply location ℹ️

External

Power supply unit (PSU) capacity

65 W

Number of power supply units

1

Power consumption (typical) ℹ️

15.25 W

Power consumption (sleep)

8.08 W

AC input voltage ℹ️

100 - 240 V

AC input frequency

50 - 60 Hz

Fan voltage

12 V

Width ℹ️

105 mm

Depth ℹ️

226 mm

Height ℹ️

168 mm

Weight ℹ️

1.48 kg

Package weight ℹ️

2.58 kg

Embedded options available

❌

Enhanced Intel SpeedStep Technology

✅

Execute Disable Bit

✅

Idle States

✅

Intel 64

✅

Intel Enhanced Halt State

✅

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) ℹ️

✅

Intel Virtualization Technology for Directed I/O (VT-d) ℹ️

✅

Intel VT-x with Extended Page Tables (EPT)

✅

Intel® AES New Instructions (Intel® AES-NI) ℹ️

✅

Intel® Anti-Theft Technology (Intel® AT) ℹ️

❌

Intel® Hyper Threading Technology (Intel® HT Technology) ℹ️

❌

Intel® Identity Protection Technology (Intel® IPT) ℹ️

✅

Intel® OS Guard ℹ️

✅

Intel® Quick Sync Video Technology ℹ️

✅

Intel® Secure Key ℹ️

✅

Intel® Smart Response Technology ℹ️

❌

Intel® Turbo Boost Technology ℹ️

❌

Maximum number of PCI Express lanes

6

Number of execution units

12

Thermal Monitoring Technologies

✅

UART

✅

Memory types supported by processor

DDR4-SDRAM, LPDDR4-SDRAM

External power adapter

✅

Cables included

AC, LAN (RJ-45)

Quick installation guide

✅

Number of screws

14

Operating temperature (T-T) ℹ️

0 - 40 °C

Operating relative humidity (H-H)

5 - 95%

Storage temperature (T-T) ℹ️

-20 - 70 °C

Harmonized System (HS) code

84714100

Processor ARK ID

128992