Refurb Squared
D7000 OPB2, 1+1 Optical Protection Switch for D7000 Managed Chassis
D7000 OPB2, 1+1 Optical Protection Switch for D7000 Managed Chassis
ISO 14001:2015
ISO 45001:2018
ISO 9001:2015
D7000 Series OPB2 provides 1+1 Protection for Single Optical Line and supports two threshold modes and two working modes. When the loss of the working fiber increases or the working fiber is blocked, the optical communication transmission system is automatically switched from the main line to the backup line in real time. The OPB2 enhances the robustness of optical networks by offering real-time failover from a compromised main line to a pre-established backup line, ensuring uninterrupted data flow and network service continuity, which is essential for maintaining high-quality communications and safeguarding against costly downtime.
Enterprise Grade Performance
Enterprise Grade Performance
Our networking cables and optical transceivers are designed for high-performance enterprise networks. They support fast data transmission, stable connectivity, and consistent signal strength across switches, servers, and routers.
Wide Device Compatibility
Wide Device Compatibility
These modules are engineered to work with many leading networking brands such as Cisco, Juniper, Arista, and other enterprise systems. They integrate easily into existing network infrastructure.
Simple Plug And Play Setup
Simple Plug And Play Setup
Installation is quick and easy. Simply insert the cable or transceiver into the compatible port and it begins operating immediately without complicated configuration.
Reliable Connection Stability
Tested And Verified Products
Affordable Enterprise Pricing

Competitive Pricing
Refurb Squared networking hardware delivers high-speed connectivity using tested optical modules and enterprise-grade cables built for reliability and seamless device compatibility.
Built For Reliable Networking
At Refurb Squared we provide high-quality networking hardware trusted by engineers and IT professionals. Our mission is to deliver reliable technology at affordable prices.





