QNAP TS-253B-4G

Qnap TS-253B-4G

CPU
Intel Celeron J3455 quad-core 1.5 GHz, up to 2.3 GHz

Encryption Accleration:
(AES-NI)

Graphics:
Intel HD Graphics 500

System memory:
4GB DDR3L
(2 x 2GB)

Maximum Memory:
8GB

Total Memory Slots:
2 x DDR3L SODIMM slots
(For dual-DIMM configuration, you must use a pair of identical DDR3L modules. )

Drive:
Hot-swappable 2 x 3.5"/2.5" SATA 6Gb/s HDD/SSD

GbE LAN Port
2 x RJ45 Gigabit LAN port

10GbE LAN Port Optional 10 Gigabit LAN port via a PCIe expansion card

USB 3.0 Port
5 x USB 3.0 Type-A ports

USB QuickAccess
USB Type-C

PCIe Slot
1 PCIe 2.0 x2 slot

HDMI Port
2 x HDMI v1.4b, up to 3840 x 2160, 30 Hz

Audio Input
2 x 3.5mm dynamic microphone input jacks

Audio Output
speaker, 3.5mm line out jack

Display
0.96 monochrome OLED

LED Indicators
Status/Power, LAN, USB, Drives, SD card, USB QuickAccess

Buttons Power, USB copy, Reset, Capacitive touch buttons (select, enter)

Infrared Receiver:
supplied with a QNAP RM-IR004 remote control (compatible with RM-IR002 remote control)

SDXC Card Reader:

Other Interfaces
Kensington security slot

Dimension (HxWxD):
168 x 105 x 226 mm
6.61 x 4.13 x 8.90 inch

Weight:
1.66 kg ( 3.66 lbs )

Sound Level*:
Operating low speed: 16.7 dB(A)

Operating Temperature:
0 ~ 40C (32F ~ 104F)

Relative Humidity
5~95% RH non-condensing, wet bulb: 27C (80.6F)

Power Consumption
HDD sleep: 13.07W

Typical Operation: 20.42W

Power Supply
65W AC adapter, 100-240V

Fan
1 x 7 cm

Package Contents
NAS, QIG, 2 x RJ45 ethernet cables, AC adapter, power cord, 2.5" drive screw kit, RM-IR004 remote control

Operating System
QTS 4.3 (embedded Linux)

Access Right Management
Batch user creation
Import/Export users
User quota management
Local user access control for CIFS, AFP, FTP, and WebDAV
Application access control for Photo Station, Music Station, Video Station, and File Station
Subfolder permissions support for CIFS/SMB, AFP, FTP, and File Station

Supported Client OS
Apple Mac OS 10.7 or later
Linux and UNIX
Microsoft Windows 7, 8, and 10
Microsoft Windows Server 2003, 2008 R2, 2012, 2012 R2 and 2016
Domain Authentication Integration
Microsoft Active Directory (AD) & Domain Controller support
LDAP server, LDAP client
Domain user login via CIFS/SMB, AFP, FTP, and File Station

Supported Browsers
Microsoft Internet Explorer 10+
Google Chrome
Apple Safari 7+
Mozilla Firefox
myQNAPcloud Service
Private cloud storage and sharing
Free host name registration (DDNS)
Optional myQNAPcloud SSL certificates (DDNS)
Auto router configuration (via UPnP)
Web-based file manager with HTTPS 2048-bit encryption
CloudLink for remote access without any complicated router setup
myQNAPcloud connect for easy VPN connection (Windows VPN utility)

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

Qsync
Sync files across multiple devices with SSL secure connection
Selective synchronization for only syncing specific folders
Use team folders as a file center for greater team collaboration (maximum sync tasks: 32)
Shares files by links via e-mail
Policy settings for conflicting files and file type filter support
Version control: up to 64 versions.
Supports central configuration mode
Supports remote erase/restore
Supports Windows & Mac OS

File System
Internal Hard Drive: EXT4
External Hard Drive: EXT3, EXT4, NTFS, FAT32, HFS+, exFAT*
*exFAT is optionally purchased by App Center
Resource Monitor
Monitor NAS system resources including CPU, memory and network
Monitor NAS storage resources including volumes, RAID, and disk activity.
Monitor the resource usage of NAS applications
An extra swap space will be created if SSD is added to the NAS. Swap space on SSDs is prioritized over swap space on HDDs because of the greater speeds of SSDs
Network & Virtual Switch
TCP/IP (IPv4 & IPv6: Dual Stack)1
Jumbo frame (failover, multi-IP settings, port trunking/NIC teaming)
DHCP client, DHCP server
USB Wi-Fi Adapter Support

Virtual Switch
Supports editing the Virtual Switches in Virtualization station.
Supports combining virtual machines and containers to the same Virtual Switch.
Supports NAT (Network Address Translation).
Supports STP (Spanning Tree Protocol).
USB QuickAccess
WirelessAP Station

Helpdesk
Report issues to the QNAP support team, with automatically-collected system information
Allows QNAP support engineers to remotely connect to the NAS to fix issues (with user permission)

Security
Network access protection with auto-blocking: SSH, Telnet, HTTP(S), FTP, CIFS/SMB, AFP
CIFS host access control for shared folders
FIPS 140-2 validated AES 256-bit volume-based and shared folder data encryption2
AES 256-bit external drive encryption2
Importable SSL certificates. Supports certificates from Lets Encrypt.
Instant alerts via email, SMS, beep, push service, and OLED panel
2-step verification

Web Administration
Multi-window, multi-tasking based system management
Smart toolbar and dashboard for neat system status display
Dynamic DNS (DDNS)
SNMP (v2 & v3)

Resource monitor
Network recycle bin for file deletion via CIFS/SMB, AFP, and File Station
Automatic Cleanup
File Type Filter
Comprehensive logs (events & connection)
Syslog client/server
System settings backup and restore
Mobile app: Qmanager for remote system monitoring & management

Storage Management
Storage Space Utilization monitoring
QNAP flexible Volume/LUN with thin provisioning and space reclaim
Disk volume types
2-Bay: RAID 0,1, JBOD, single
4-Bay: RAID 0,1, 5, 6, 10, 5 + hot spare, JBOD, single
6-Bay: RAID 0,1, 5, 6, 10, + hot spare, JBOD single
Supports storage pools
Supports Qtier auto-tiering technology
Supports snapshots
Supports Volume/LUN snapshot
Snapshot manager
Snapshot clone
Snapshot vault
Snapshot replica
Snapshot agent for Microsoft Windows and VMware vSphere
Online volume expansion
Online storage pool expansion
Online RAID capacity expansion and online RAID level migration
SMART data migration
Storage expansion via QNAP UX-500P/UX-800P expansion units
JBOD enclosure roaming
SSD read-only/read-write cache
Bad block scan and hard drive S. M. A. R. T.
Bad block recovery & RAID recovery
Bitmap support

File Server
File sharing across Windows, Mac, and Linux/UNIX
Microsoft networking
Windows ACL
Advanced folder permissions for CIFS/SMB, AFP, FTP
Shared folder aggregation (CIFS/SMB)