Brand |
QNAP |
Model |
TS-251B-2G |
CPU Model |
Intel® Celeron® J3355 dual-core 2.0 GHz processor (burst up to 2.5 GHz) |
Operating System |
QTS 4.3.4 (embedded Linux) |
System Memory |
2 GB SO-DIMM DDR3L (1 x 2 GB) |
Drive Interface |
2 x 3.5-inch SATA 6Gb/s, 3Gb/s |
Number of Drives |
3.5-inch SATA hard disk drives
2.5-inch SATA hard disk drives
2.5-inch SATA solid state drives |
LED Indicators |
Power/Status, LAN, USB, HDD1-2 |
USB Interface |
USB 2.0 3 port / USB 3.0 2 port |
Video |
1, HDMI 1.4b (up to 3840 x 2160 @ 30Hz) |
Audio |
2 x 3.5mm dynamic microphone input jacks |
Memory Slot |
2 x SO-DIMM DDR3L |
Buttons |
Power, USB copy, Reset |
Networking |
TCP/IP: Dual stack (IPv4 and IPv6)
Jumbo frame (failover, multi-IP settings, port trunking/NIC teaming)
DHCP server and client
USB Wi-Fi adapter
|
Security |
Network access protection with auto-blocking (SSH, Telnet, HTTP(S), FTP, CIFS/SMB, and AFP)
Host access control for shared folders (CIFS/SMB)
AES 256-bit folder-based and volume-based encryptions which are validated by FIPS 140-2 CAVP (Cryptographic Algorithm Validation Program)
256-bit external drive encryption (AES) |
OS Support |
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
|
File system |
Internal hard drive (EXT4)
External hard drive (EXT3, EXT4, NTFS, FAT32, HFS+, and exFAT)
|
File Sharing |
File sharing across Windows, Mac, and Linux/UNIX
Microsoft networking
Windows ACL
Advanced folder permissions (AFP, CIFS/SMB, and FTP)
Shared folder aggregation (CIFS/SMB) |
Power Supply |
External Power Adapter, 65W, 100-240V |
Power Consumption |
HDD Sleep Mode : 8.08 W
Operating Mode,Typical : 15.25 W |
Package Dimension |
(W x D x H) : 20.00 x 31.00 x 27.00 cm |
Gross Weight |
3.70 KG |
Volume |
16,740.00 cm3 |
warranty |
-
|