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QNAP TS-251D-2G 2-Bay Intel Celeron J4005 Dual Core 2.0 GHz 2GB RAM DDR4 Multimedia NAS

QNAP TS-251D-2G 2-Bay Intel Celeron J4005 Dual Core 2.0 GHz 2GB RAM DDR4 Multimedia NAS
  • QNAP TS-251D-2G 2-Bay Intel Celeron J4005 Dual Core 2.0 GHz 2GB RAM DDR4 Multimedia NAS
  • QNAP TS-251D-2G 2-Bay Intel Celeron J4005 Dual Core 2.0 GHz 2GB RAM DDR4 Multimedia NAS
  • QNAP TS-251D-2G 2-Bay Intel Celeron J4005 Dual Core 2.0 GHz 2GB RAM DDR4 Multimedia NAS
  • QNAP TS-251D-2G 2-Bay Intel Celeron J4005 Dual Core 2.0 GHz 2GB RAM DDR4 Multimedia NAS
$499.0
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Specifications

  • Product Name:
    QNAP TS-251D-2G 2-Bay Intel Celeron J4005 Dual Core 2.0 GHz 2GB RAM DDR4 Multimedia NAS
  • Model Number:
    TS-251D-2G
  • Brand:
  • Manufacturer Warranty:
    2 Year
  • Description

    DD.jpg




    SPECIFICATIONS:

    Hardware


    CPU

    Intel® Celeron® J4025/J4005 2-core/2-thread   processor, burst up to 2.9/2.7 GHz

    CPU Architecture

    64-bit x86

    Graphic Processors

    Intel® HD Graphics 600

    Floating Point Unit

    Y

    Encryption Engine

     (AES-NI)

    Hardware-accelerated Transcoding

    Y

    System Memory

    2 GB SO-DIMM DDR4 (1 x 2 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 visit https://www.qnap.com/compatibility/

    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

    Y

    M.2 Slot

    Optional via a QM2 PCIe adapter

    SSD Cache Acceleration Support

    Y

    Gigabit Ethernet Port (RJ45)

    1

    Expandable with an optional PCIe adapter

    5 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)

    Y

    Jumbo Frame

    Y

    PCIe Slot

    1
      Slot 1: PCIe Gen 2 x4

    PCIe 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)

    Storage Temperature

    -20 - 70°C (-4°F - 158°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

    Y

    Max. Number of Concurrent Connections (CIFS) - with Max. Memory

    1500

    Software


    Operating System

    QTS 5.0.0

    Supported Client Operating Systems

    Apple Mac OS 10.10 or later

    Ubuntu 14.04, CentOS 7, RHEL 6.6, SUSE 12 or   later Linux

    IBM AIX 7, Solaris 10 or later UNIX

    Microsoft Windows 7, 8, 10 and 11

    Show more...

    Supported Browsers

    Apple Safari (latest version)

    Google Chrome (latest version)

    Microsoft Edge (latest version)

    Mozilla Firefox (latest version)

    Supported Languages

    Chinese (Traditional & Simplified), Czech,   Danish, Dutch, English, Finnish, French, German, Greek, Hungarian, Italian,   Japanese, Korean, Norwegian, Polish, Portuguese (Brazil), Romanian, Russian,   Spanish, Swedish, Thai, and Turkish

    Storage Pool

    Y

    SED Storage Pool

    Y

    Maximum Pool size

    308 TB

    Maximum number of storage pool

    128

    Volume Type

    Thick, Thin, Static

    Maximum volume size

    250 TB

    Note: At least 4 GB RAM is required.

    Maximum number of volume

    128

    Maximum shared folder size

    250 TB

    Maximum number of shared folder

    512

    JBOD Expansion

    Y

    VJBOD / VJBOD Cloud

    Y

    iSCSI Service

    Y

    Fibre Channel Service

    Y

    LUN Type

    Thick, Thin

    File-based iSCSI LUN

    Y

    Block-based iSCSI LUN

    Y

    Maximum LUN size

    250 TB

    Note: At least 4 GB RAM is required.

    Maximum number of targets LUN

    256

    LUN feature

    LUN Mapping (LUN can be moved between iSCSI and   FC)

    LUN Masking

    WWPN Aliases Import/Export

    FC Port Group

    Show more...

    Auto Tiering

    Y

    RAID Type

    8-bay (and more): JBOD, Single, RAID 0, 1, 5, 6,   10, 50, 60

    6-bay: JBOD, Single, RAID 0, 1, 5, 6, 10, 50

    4-bay: JBOD, Single, RAID 0, 1, 5, 6, 10

    2-bay: JBOD, Single, RAID 0, 1

    RAID Group

    To ensure data security, system stability, and   storage performance, the maximum number of drives for a single RAID group is   now 16 (applicable to RAID 5, RAID 6, RAID TP, and subgroups of RAID 50 and   RAID 60). Nevertheless, users can combine multiple RAID groups into a large   storage pool that contains more than 16 drives, using RAID 50, RAID 60, or   RAID 10 as the RAID configuration. This enhancement will only be applied to   new RAID groups. All existing RAID groups and storage systems will not be   affected.

    RAID Level Migration

    Y

    RAID Expansion (by adding Disk)

    Y

    RAID Expansion (by replacing bigger Disks)

    Y

    Storage Pool Expansion (by adding RAID Group)

    Y

    RAID Hot Spare

    Global, Local

    RAID Sync/Rebuild/Scrubbing

    Y

    Internal drive

    EXT4

    External drive

    EXT3, EXT4, NTFS, FAT32, HFS+, and exFAT   (optional for ARM model)

    Note: To use exFat in certain models you must purchase   an exFAT driver license from License Center.

    Disk, Enclosure Locate

    Y

    Disk S.M.A.R.T. Scan

    Y

    Disk S.M.A.R.T. Data Migration

    Y

    Ironwolf Health Management

    Y

    Secure Erase

    Y

    SSD Trim

    Y

    SSD Life Estimation

    Y

    Disk Roaming

    Y

    Disk Standby

    Y

    Volume Snapshot

    Y

    LUN Snapshot

    Y

    Minimum Snapshot Interval

    5 minutes

    Snapshot Retention Policy

    Y

    Self-serve Snapshot Recovery

    Y

    Application Consisted Snapshot

    Y

    Snapshot Full Clone

    Y

    Snapshot Replica / Vault

    Y

    SSD read-only Cache

    Y

    SSD read-write cache

    Y

    SSD write-only cache

    Y

    SSD Cache RAID

    0, 1, 5, 6, 10

    SSD profiling tool

    Y

    External Device Management

    Y

    Mount Smart Phone (MTP)

    Y

    External RAID Device (QNAP so on) Management (External Device Mode)

    Y

    External RAID Device (QNAP so on) Management (NAS Mode)

    Y

    File Server

    File sharing across Windows, Mac, and Linux/UNIX

    Microsoft networking (CIFS/SMB)

    Apple networking (AFP)

    NFS version 3/4 services

    FTP Server

    QuFTP

    FTP, SFTP and TFTP protocols

    FTP over SSL/TLS (explicit FTPS)

    FXP support

    Maximum FTP connection

    1024

    File Station (Web)

    Y

    Object Storage

    Y

    Local user account

    4,096

    Local group account

    512

    Domain user/group account

    200,000

    Domain Security

    Y

    Domain Controller

    Y

    Shared folder permission

    Y

    Advanced folder permission

    , (AFP, CIFS/SMB, FTP, and File Station)

    Windows ACL

    , (CIFS/SMB)

    User quota

    Y

    Group quota

    Y

    Folder quota

    , (Snapshot shared folder)

    Home folder

    Y

    Resource Monitor

    Y

    SNMP

    V2, V3

    Network recycle bin

    Recover files deleted using AFP, CIFS/SMB, and   File Station

    Automatic cleanup and file type filter

    System Log & Notification Center

    Log recording: 3,000 event per hour

    Smart Fan

    Y

    Schedule on/off

    Y

    Internet protocol

    IPv4, IPv6

    Virtual Switch

    Y

    Port trunking

    , (7 modes)

    VLAN

    Y

    DHCP Server

    Y

    DDNS (Dynamic Domain Name Service)

    Y

    Network access protection with auto-blocking

    SSH, Telnet, HTTP(S), FTP, CIFS/SMB, and AFP

    Security Counselor

    Y

    Malware Remover

    Y

    AES 256-bit Volume Encryption validated by FIPS 140-2 CAVP

    Y

    2-step verification

    Y

    Allow/Deny List

    Y

    Access Protection

    Y

    Service binding

    Y

    Firewall

    Y

    vSphere Web Client Plug-in

    Y

    VMware vSphere VAAI for iSCSI

    Y

    VMware vSphere VAAI for NAS

    Y

    Windows ODX

    Y

    Windows/VMware Snapshot Agent

    Y

    HTTP/HTTPS Connections

    TLS 1.0/1.1/1.2/1.3

    Supports WebDAV Connection

    Y

    Supports Virtual Hosts

    32

    Qsync

    Note: At least 1 GB RAM is required.

    [Qsync] Management Mode

    User customization, Central

    [Qsync] Qsync client supported platforms

    Windows, macOS, Ubuntu, Android, and iOS

    [Qsync] Maximum number of version control

    64

    HybridMount

    Note: At least 1 GB RAM is required.

    [HybridMount] File Cloud Gateway

    Concurrent Connections = 20 Upload & 20   Download

    [HybridMount] Network Drive Mount

    Y

    [HybridMount] Free cloud gateway sessions

    2

    HBS (Hybrid Backup Sync)

    Note: At least 1 GB RAM is required.

    [HBS (Hybrid Backup Sync)] NAS to NAS backup

    Y

    [HBS (Hybrid Backup Sync)] NAS to rsync backup

    Y

    [HBS (Hybrid Backup Sync)] NAS to FTP backup

    Y

    [HBS (Hybrid Backup Sync)] Cloud Backup

    Y

    [HBS (Hybrid Backup Sync)] Cloud Sync

    Y

    [HBS (Hybrid Backup Sync)] 2-way and Active Sync

    Y

    [HBS (Hybrid Backup Sync)] Backup Deduplication

    Y

    [HBS (Hybrid Backup Sync)] Real-time backup

    Y

    [HBS (Hybrid Backup Sync)] Apple Time Machine Backup

    Y

    [HBS (Hybrid Backup Sync)] External drive backup

    Y

    [HBS (Hybrid Backup Sync)] Maximum number of backup job

    400

    Hyper Data Protector

    Y

    Boxafe

    Note: At least 1 GB RAM is required.

    [Boxafe] Office 365 Backup

    Y

    [Boxafe] Google Workspace Backup

    Y

    [Boxafe] Full-text search

    Y

    Qsirch

    Note: This feature is supported by all QNAP NAS   devices with at least 2 GB of memory

    [Qsirch] Previews

    Photos, music, videos, PDFs, Gmail, and others

    [Qsirch] Integrate Mac Finder

    Y

    [Qsirch] Advanced picture search

    Y

    [Qsirch] Search filters

    Y

    QuMagie

    Note: At least 1 GB RAM is required.

    [QuMagie] Browse photos

    Y

    [QuMagie] Virtual and smart albums

    Y

    [QuMagie] AI-assisted photo management

    People, things, places, and others

    Antivirus (free)

    Y

    McAfee (License)

    Y

    QVPN Service

    Note: At least 1 GB RAM is required.

    [QVPN Service] Remote Access

    PPTP, L2TP/IPSec, OpenVPN, WireGuard, QBelt (QNAP   proprietary)

    [QVPN Service] Supportedd utility and mobile app

    Windows, macOS, iOS, and Android

    [QVPN Service] Supported maximum clients

    100

    HD Station

    Y

    LDAP Server

    Y

    RADIUS

    Y

    SQL server

    Y

    License Center

    Y

    Multimedia Console

    Y

    Photo Station

    Y

    Music Station

    Y

    Video Station

    Y

    Download Station

    Y

    Notes Station

    Y

    Qfiling

    Y

    Media Streaming add-on

    Y

    QmailAgent

    Y

    QuWAN

    Y

    DA Driver Analyzer

    Y

    Q'center

    Note: The application is available in the App   Center and in virtual appliance marketplaces (VMware vSphere ESXi and   Microsoft Hyper-V).

    Q'center Server

    Y

    Q'center Agent

    Y

    Connect to Q'center

    Y

    Virtualization Station

    Note: At least 4 GB RAM is required.

    [Virtualization Station] Supports Virtual machine instances

    Windows, Linux, Unix, and Android

    [Virtualization Station] VM importing, exporting, cloning, snapshot   capturing, backup, and restoration

    All function is Fine.

    [Virtualization Station] Virtual switches

    Can create a virtual switch

    [Virtualization Station] GPU pass-through

    Not support GPU

    Container Station

    Note: At least 1 GB RAM is required.

    [Container Station] Supported type

    LXC/LXD and Docker

    Note: LXD has been supported after Container   Station 2.4

    [Container Station] Docker Hub Registry

    Y

    [Container Station] Container importing and exporting

    Y

    [Container Station] Console mode

    Y

    Linux Station

    Y

    Supports Linux Station versions

    16.04, 18.04, and 20.04

    Linux Station Center

    Y

    QVR Pro

    Note: At least 4 GB RAM is required. The maximum   number of channels supported varies by NAS model, network configuration, and   camera settings. For more information, visit https://www.qnap.com/go/qvr-nas-selector.

    [QVR Pro] Recording Technique

    Index database based

    [QVR Pro] License Type

    Perpetual

    [QVR Pro] User-defined trigger events

    Y

    [QVR Pro] Metadata

    Y

    [QVR Pro] QVR Pro Client (Desktop)

    Windows, macOS, and QNAP HybridDesk Station

    [QVR Pro] QVR Pro Client (Mobile)

    Android and iOS

    [QVR Pro] Recording camera streams

    H.264

    [QVR Pro] Free built-in camera channels

    8

    QVR Elite

    Note: At least 1 GB RAM is required. The maximum   number of channels supported varies by NAS model, network configuration, and   camera settings. For more information, visit https://www.qnap.com/go/qvr-nas-selector.

    [QVR Elite] Recording Technique

    Standard MP4 file based

    [QVR Elite] License Type

    Subscription-based

    [QVR Elite] User-defined trigger events

    Y

    [QVR Elite] QVR Pro Client (Desktop)

    Windows, macOS, and QNAP HybridDesk Station

    [QVR Elite] QVR Pro Client (Mobile)

    Android and iOS

    [QVR Elite] Recording camera streams

    H.264

    [QVR Elite] Free built-in camera channels

    2

    QVR Pro Client

    Y

    [QVR Pro Client] Dynamic View Layout

    Y

    [QVR Pro Client] Windows

    Y

    [QVR Pro Client] Mac

    Y

    [QVR Pro Client] HybridDesktop

    Y

    [QVR Pro Client] iOS

    Y

    [QVR Pro Client] Android

    Y

    QVR Center

    Note: At least 4 GB RAM is required.

    [QVR Center] Log management

    Y

    [QVR Center] Central monitoring across multiple servers

    Y

    QVR Guard

    Note: At least 4 GB RAM is required.

    [QVR Guard] Failover design

    Y

    [QVR Guard] Viewing task details

    Y

    [QVR Guard] Automatic switch between Standby and Takeover modes

    Y

    QVR Human

    Y

    QVR Face

    The maximum number of channels supported varies   by NAS model, network configuration, and camera settings. For more   information, visit https://www.qnap.com/solution/qvr-face/en-us/

    QVR DoorAccess

    Y


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