Skip to main content

B+B SmartWorx SmartFlex SR308 2 SIM Ethernet, Cellular Modem/Wireless Router

Part #: 1-2699998

B+B SmartWorx SmartFlex SR308 2 SIM Ethernet, Cellular Modem/Wireless Router

Part #: 1-2699998 MFG Part #: BB-SR30808325-SWH
$951.10 $846.83
Save $104.27
SPECIAL ORDER

0 Available

(as of Feb 14, 2026 2:11 AM) Refresh Inventory
FREE SHIPPING

Free shipping on most items when you spend $100

AUTHORIZED DEALER
AUTHORIZED DEALER
AUTHORIZED DEALER

AUTHORIZED DEALER

Protect your investment ()

About the B+B SmartWorx SmartFlex SR308

View User Manual

SmartFlexTM cellular router provides secure Internet connectivity for devices and LANs via the cellular networks. It can provide automatic wireless failover for wired networks, wireless connectivity for devices in remote locations where cable connections are impractical and wireless connectivity for mobile assets. With upload speeds of up to 50 Mbps and download speeds of up to 150 Mbps, SmartFlex provides ample bandwidth, even for applications that require video.

SmartFlex places intelligence at the network edge with an extremely powerful Cortex A8 CPU at 1GHz, 256 MB flash memory, 512 MB RAM and 128kB M-RAM, providing full support for LTE (Long Term Evolution) speeds and applications. A secure Web interface allows users to configure and manage SmartFlex from remote locations. The router can also upgrade its configuration and firmware from the operator's central server, allowing for simultaneous mass reconfiguration of every router on the network. Users may insert Linux scripts and can create multiple configurations for the same router and switch from one configuration to another at any time.

Modular SmartFlex can be configured for any application. Standard configuration includes 2 Ethernet ports with 2 independent LANs/IP addresses and also includes 1 USB host port, 1 microSD card holder, 2 SIM card holders for automatic failover to an alternate service provider, 2 binary inputs(I/O), 1 binary output (I/O) and onboard GPS.

An optional built-in Wi-Fi module is also available, with industrial grade operating temperature ranges from -40 to +75 °C. Further optional boards include: 3x ETH (the router can be configured with up to 5 total Ethernet ports and 3 independent LANs/IP addresses) or RS-232/485 (isolation strength up to 2.5kV). The SmartFlex supports real time data encryption and the creation of VPN tunnels using IPsec, OpenVPN and L2TP. It supports DHCP, NAT, NAT-T, DynDNS, NTP, VRRP, control by SMS, and numerous other functions, as well as additional software like SmartWorx HUB and R-SeeNet.

Technical Specifications of the B+B SmartWorx SmartFlex SR308

General Information


Manufacturer Advantech Co., Ltd
Manufacturer Part Number BB-SR30808325-SWH
Manufacturer Website Address http://www.advantech.com
Brand Name B+B SmartWorx
Product Line SmartFlex
Product Model SR308
Product Name SmartFlex SR308 Modem/Wireless Router
Product Type Modem/Wireless Router

Technical Information


Processor Type Cortex A8
Processor Speed 1 GHz
Standard Memory 512 MB
Maximum Upload Speed 6.25 MB/s

Wireless Specifications


Broadband Transmission Technology CellularEthernet
Cellular Generation 4G
Cellular Network Supported TD-SCDMAHSPA 2100UMTS 2100HSPA 850HSPA 900TD-SCDMA 1900LTE 1900TD-SCDMA 2100LTE 2600TD-SCDMA 850LTE 1700LTE 700LTE 850UMTS 850UMTS 900LTE 1800LTE 900LTE 2100TD-SCDMA 900HSPA 1900UMTS 1900LTE 2300
Cellular Data Connectivity Technology LTEHSPAUMTSLTE Cat 4EDGEDC-HSPA+HSPA+GPRS
Total Wireless Transmission Speed 18.75 MB/s
Firewall Type PATNAT

Interfaces/Ports


Number of Network (RJ-45) Ports 1
Total Number of Network Ports 2
USB Yes
PoE (RJ-45) Port Yes
Number of Broadband (RJ-45) Ports 1
USB Standard USB 2.0

Network & Communication


Ethernet Technology Fast Ethernet
VPN Supported Yes
Multi-SIM Supported Yes
Number of SIM Card Supported 2
SIM Size Supported Mini

Storage


Flash Memory Capacity 256 MB
Storage Media MicroSD

Physical Characteristics


Product Material Metal
Form Factor DIN Rail Mountable
Height 2.2"
Width 4.9"
Depth 3.8"
Weight (Approximate) 13.23 oz

Miscellaneous


Package Contents
  • SmartFlex SR308 Modem/Wireless Router
  • DIN Rail Clip
  • PS Cable 2-wire, MO 2 Pins, 3m, v3 Routers
  • Quick Start Guide
Certifications & Standards
  • RCM (Australia, New Zealand)
  • IEC 61000-6-2:2005, IEC 61000-6-3:2006
  • EN 60950-1:2006 + A11:2009 + A1:2010 + A12:2011 + A2:2013
  • EN 62311:2008

Ratings and Reviews

Do you own the B+B SmartWorx SmartFlex SR308?
Be the first to write a review!
Displaying 1-10 of 70
Page size: