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Product Description

QNAP TS-251B 2-Bay NAS Enclosure

Key Features

2 x 3.5"/2.5" SATA III Drive Bays
2.0 GHz Intel Celeron J3355 Dual-Core
4GB of DDR3L RAM
1 x Gigabit Ethernet Port

The TS-251B 2-Bay NAS Enclosure from QNAP combines secure data storage and multimedia entertainment into one device. Built with a PCIe 2.0 x2 slot, the TS-251B allows for the flexible extension of its functionality and potential applications. Users can install a

Specification

Number of Bays	2 x 2.5"/3.5"
Media Card Slots	None
Connections	2 x USB Type-A (USB 3.1 Gen 1 (5 Gb/s)) 3 x USB Type-A (USB 2.0 (480 Mb/s)) 1 x RJ45 (Gigabit Ethernet) 1 x HDMI Type-A (HDMI 1.4b) 2 x 3.5 mm (Audio In) 1 x 3.5 mm (Audio Out)
Compatible Drive Interface	SATA II, SATA III
Form Factor	Desktop
RAID Modes	RAID 0, 1, JBOD, Single
Hot-Swap Support	Yes
Expansion Slots	1 x PCIe 2.0 x2
Link Aggregation and Failover Support	Yes
Wake on LAN	Yes

Drives

Type	None
Flash Memory	4 GB

Computing

Processor	Intel Celeron J3355 Dual-Core
Clock Speed	Base: 2.0GHz / Maximum Boost: 3.5 GHz
GPU	Intel HD Graphics 500
Total Installed Memory	4 GB DDR3L
User-Replaceable Memory	1 x 4 GB
Total Memory Slots	2 x SO-DIMM
Maximum Memory Capacity	8 GB

Networking

Supported Protocols	AFP CIFS/SMB FTP HTTP HTTPS IPv4 IPv6 L2TP/IPSec OpenVPN PPTP SSH SSL Telnet WebDAV
iSCSI Target	256
Max Cameras Supported	5000
Max Sync Tasks	32

Software

Installed Operating System	QTS 4.3.4
OS Compatibility	macOS 10.7 or Later Windows 10 Windows 8 Windows 7 Windows Server 2016 Windows Server 2012 R2 Windows Server 2012 Windows Server 2008 R2 Windows Server 2003 Linux UNIX
File System Formats Supported	Internal: EXT4 External: EXT3, EXT4, FAT32, HFS+, NTFS, exFAT
Supported Browsers	Chrome, Firefox, Internet Explorer, Safari
Supported Languages	Brazilian Portuguese Czech Danish Dutch English French German Greek Hungarian Italian Japanese Korean Norwegian Polish Romanian Russian Simplified Chinese Spanish Swedish Thai Traditional Chinese Turkish

Electrical

Power Consumption	15.25 W (Typical) 8.08 W (Standby)
Power Source	AC Adapter
PSU Wattage	1 x 65 W
AC Input Power	100 to 240 VAC, 50 / 60 Hz

Security

Encryption	256-Bit AES, FIPS 140-2 Level 2, AES-NI
Security Features	Kensington Security Slot

Environmental

Operating Temperature	32 to 104°F / 0 to 40°C
Operating Humidity	5 to 95%

Physical

Cooling	1 x 70 mm Fan
Noise Level	16.7 dBA
Built-In Speakers	Yes
IR Sensor	Yes
Status Monitoring	LED Indicator
Dimensions	4.1 x 6.6 x 8.9" / 10.41 x 16.76 x 22.61 cm
Weight	3.37 lb / 1.53 kg