Refurb Squared
0.5m (2ft) Arista Networks C-O800-O800-0.5M Compatible 800G OSFP 8 x 100G PAM4 Finned Top Passive Direct Attach Copper Twinax Cable
0.5m (2ft) Arista Networks C-O800-O800-0.5M Compatible 800G OSFP 8 x 100G PAM4 Finned Top Passive Direct Attach Copper Twinax Cable
ISO 14001:2015
ISO 45001:2018
ISO 9001:2015
The Arista Networks C-O800-O800-0.5M is a 2x 400Gb/s twin-port OSFP (Octal Small Form-factor Pluggable) to 2x 400Gb/s twin-port OSFP direct attach cable that operates over passive copper and integrates eight high-speed electrical pairs, each supporting up to 100Gb/s with 100G-PAM4 modulation to deliver 800Gb/s for short-reach links. This cable is compliant with OSFP MSA (Multi-Source Agreement), CMIS Rev 4.0, and IEEE 802.3ck standards. Both ends use a finned-top design optimized for air-cooled switches. With near-zero power, ultra-low latency, and plug-and-play deployment, this passive DAC is ideal for short-reach, switch-to-switch connections in spine-leaf or leaf-leaf architectures, providing a cost-efficient and power-optimized solution for AI, HPC, and cloud data centers.
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.





