TS-251B-4G

Intel® Celeron® J3355 dual-core 2.0 GHz processor (burst up to 2.5 GHz)

QTS 4.3.4 (embedded Linux)

System Memory
- 4 GB SO-DIMM DDR3L (1 x 4 GB)
Maximum Memory 
- 8 GB (2 x 4GB)

2 x 3.5-inch SATA 6Gb/s, 3Gb/s

3 x USB 2.0
2 x USB 3.2 Gen 1

1 x Gigabit Ethernet Port (RJ45)

1 x HDMI Output, HDMI 1.4b (up to 3840 x 2160 @ 30Hz)

Audio Input
- 2 x 3.5mm dynamic microphone input jacks
Audio Output
- 1 x built-in speaker
- 1 x 3.5mm line out jack (for amplifier or headphone amplifier)

2 x SO-DIMM DDR3L

Power, USB copy, Reset

1. TCP/IP: Dual stack (IPv4 and IPv6)
2. Jumbo frame (failover, multi-IP settings, port trunking/NIC teaming)
3. DHCP server and client
4. USB Wi-Fi adapter
Note: This feature does not support ad hoc networks because of security considerations.
5. Virtual switch
 - Virtual switch editing in Virtualization Station
 - Combining virtual machines and containers in the same virtual switch
 - Network Address Translation (NAT)
 - Spanning Tree Protocol (STP)
6. WirelessAP Station

1. Network access protection with auto-blocking (SSH, Telnet, HTTP(S), FTP, CIFS/SMB, and AFP)
2. Host access control for shared folders (CIFS/SMB)
3. AES 256-bit folder-based and volume-based encryptions which are validated by FIPS 140-2 CAVP (Cryptographic Algorithm Validation Program)
4. 256-bit external drive encryption (AES)
5. Importing of SSL certificates from Let’s Encrypt
6. Instant alerts through email, SMS, push service, and audio
7. 2-step verification

- Storage Management
- Power Management
- Access Rights Management
- Transcode Management

1. Internal hard drive (EXT4)
2. External hard drive (EXT3, EXT4, NTFS, FAT32, HFS+, and exFAT)
Note: To use exFat you must purchase an exFAT driver license from License Center.

1 x 70mm, 12VDC

65W adapter, 100-240V

HDD Sleep Mode : 8.08 W
Operating Mode, Typical : 15.25 W

Operating temperature0 - 40 °C (32°F - 104°F)

TS-251B
Ethernet Cable
AC Adapter
Power Cord
Flat head screw (for 3.5" HDD)
Flat head screw (for 2.5" HDD)