Link Box

Field Connectivity Network Bonding Kit

The Link Box is a fully-integrated “Cellular & Network Bonding” kit that provides reliable, secure, and unbreakable connectivity in the field. This “standard” variant is designed for medium or large team connectivity in the field, as well as disaster response, executive communications, or part of a hybrid cellular/satellite solution. With embedded global cellular modems, global roaming SIM cards, and IATA airline carry-on compliant batteries, the Link Box will provide you with secure, unbreakable connectivity anywhere in the world.

Don’t rely on a single connection for your mission critical communications anymore. Load Balancing and Failover routers still rely on the bandwidth from a single connection at a time, whereas Network Bonding COMBINES the bandwidth into one connection. It’s time for a connectivity upgrade with the Link Box.



  • Bonds multiple internet connections into one faster, more reliable connection
    • Internet connections can be any source, including cellular, satellite, WiFi, or terrestrial
    • WAN Ports can be used to add additional internet connections
    • Zero interruption when individual links drop
  • 3 Embedded Cellular Modems
    • Add up to two optional additional cellular modems (total of five)
    • Global cellular bands
    • FirstNet Band 14 Ready
  • AES 256-bit Encryption Standard
    • FIPS 140-2 License Available
  • Hot Swappable Batteries for Extended Off-Grid Run-Time
    • Batteries are IATA airline carry-on compliant (<98Wh)


Max Bonded Throughput 600 Mbps (500 Mbps with AES 256)
Cellular Modems 3 (CAT12 Global)
WAN Ports (Internet Source Input) 2
LAN Ports (Internet Output) 4
Phones & Phone Lines 2
WiFi Yes; 2.4 GHz and 5 GHz
Cellular Bands (all modems) LTE: B1, B2, B3, B4, B5, B7, B8, B9, B12, B13, B14, B18, B19, B20, B26, B29, B30, B32, B41, B42, B43, B46, B48, B66;

3G: B1, B2, B4, B5, B6, B8, B9, B19

Operating Temperature -30°C to +60°C (-22°F to +140°F)
Storage Temperature -40°C to +65°C (-40°F to +149°F)
IP Rating IP67 (with lid closed)
Operating Humidity 15% to 95% (non-condensing)
Weight 14 Kg (31 lbs)
Dimensions 546x347x247 mm (21.5×13.7×9.8 in)
Input Voltage 24VDC (90-240VAC using AC-DC Power Supply)
Battery Capacity 196 Wh (2 Batteries @ 98Wh each)

Network Bonding Service Options

Network Bonding works by splitting your data at the packet level and sending those packets over all available internet connections. A “Bonding Server” is required to reconstruct those packet back into their original form. This server can reside in our AWS cloud, on a customer virtual server, or as a physical router at a customer location.

Cloud Bonding Service – Included with the use of Transpondr Global SIM Cards / License required for third party SIMs. No additional hardware required and is provided “as-a-service.”

Physical Bonding Router – Placed at customer location. One device can support multiple bonding peers in the field as a hub and spoke VPN network. Router type and licenses determine the number of supported peers, which can be in the thousands.  

Virtual Bonding Appliance – Installed on customer server or VMWare. Licenses available for as few as 5 peers up to 1000+

Add Ons

Global Cellular SIM Cards – SIMs included with the purchase or lease of a Link Box

VoIP Phone Lines – Add VoIP services with dedicated phone numbers

Additional Cellular Modem – Add additional cellular modems to the Link Box to increase bandwidth and reliability

Lease Option – Lease rather than buy, get global cellular data bundled in for a complete “as-a-service” solution

Additional Integrations – Cel-Fi cellular signal booster; Silvus IP MIMO Radio; iDirect or Newtec Satellite Modem; Teradek HEVC Video Encoder

Custom Build – We can integrate your equipment or build the kit into a larger case for additional storage space