NVIDIA/Mellanox Compatible 800G Twin-port OSFP to OSFP Passive Direct Attach Copper Cable (Flat Top/RHS, 8x100G PAM4, 0.5m-3m)
- Brand: NVIDIA/Mellanox
- Product Code: OSFP-800G-CUAFH
- Availability: In Stock
Model / Part Number: MCP4Y10-N00A-FLT (980-9IA0L-00N00A / OSFP-800G-CUAFH Series)
Brand: NVIDIA / Mellanox Compatible Original Equivalent
Cable Assembly : NVIDIA/Mellanox Compatible 800G (2x400G) Twin-port OSFP Flat Top to Twin-port OSFP Flat Top Passive Direct Attach Copper Cable (DAC), 8x100G PAM4 Modulation, Available in Lengths 0.5m (1.6ft), 1m (3ft), 1.5m (5ft), 2m (7ft), and 3m (10ft), 26AWG to 30AWG Wire Gauge, PVC Jacket, CMIS 5.0 Compliant, Dual Flat Top / RHS Shells
The MCP4Y10-N00A-FLT (980-9IA0L-00N00A / OSFP-800G-CUAFH) is a high-performance 800Gb/s (2x400Gb/s) Twin-port OSFP Flat Top to Twin-port OSFP Flat Top Passive Direct Attach Copper Cable (DAC) engineered for high-density AI acceleration clusters, host-to-host interconnects, and liquid-cooled data center environments. Utilizing eight high-speed electrical copper pairs operating at 100Gb/s PAM4 per channel, this passive cable delivers near-zero latency and ultra-low power consumption (<0.1W) for short-reach node configurations.
Designed with Riding Heat Sink (RHS / Flat Top) OSFP enclosures on both ends, this cable relies on the internal riding heat sinks of host system cages rather than external connector fins. This makes it natively optimized for direct direct-attach connections between high-density network adapters and server nodes, including NVIDIA ConnectX-8 / ConnectX-7 800G OSFP NICs, DGX H100 / HGX systems, and liquid-cooled compute architectures.
Key Features
- Dual Flat Top (RHS) Design: Smooth flat-top enclosures on both connector ends, specifically tailored for server cages, ConnectX NICs, and liquid-cooled environments.
- Near Zero Power & Ultra-Low Latency: Consumes less than 0.1W of operational power while maintaining direct physical layer transmission for high-speed AI training tasks.
- 800Gbps High-Density Throughput: Features a twin-port 2x400Gb/s architecture utilizing 8x 106.25Gb/s PAM4 electrical signaling.
- Multiple Distance Options: Offered in 0.5m (1.6ft), 1m (3ft), 1.5m (5ft), 2m (7ft), and 3m (10ft) lengths with optimized 26AWG–30AWG wire gauges.
- 100% InfiniBand NDR & Ethernet Compatibility: Fully tested and compliant with IBTA Industrial BER standards, OSFP MSA, CMIS 5.0, and RoHS protocols.
- Flexible Cable Routing: Premium PVC outer jacketing with a tight 10x OD bend radius allows for clean, high-density intra-rack cable management.
Technical Specifications
| Part Number / Model | MCP4Y10-N00A-FLT (980-9IA0L-00N00A / OSFP-800G-CUAFH Series) |
| Cable Type | Passive Direct Attach Copper Cable (DAC) |
| Connector Form Factor | Twin-port OSFP Flat Top to Twin-port OSFP Flat Top (RHS) |
| Data Rate / Protocols | 800Gbps (2x 400Gb/s) | InfiniBand NDR & 800G Ethernet Compliant |
| Available Cable Lengths | 0.5m (1.6ft), 1m (3ft), 1.5m (5ft), 2m (7ft), 3m (10ft) |
| Wire Gauge (AWG) | 26AWG to 30AWG (Length-dependent) |
| Modulation Scheme | 8x 106.25Gb/s PAM4 Electrical Pairs |
| Power Consumption | <0.1W (Passive Copper) |
| Jacket Material & Bend Radius | PVC Jacket | Minimum Bend Radius: 10x Outer Diameter (OD) |
| Operating Temperature | 0°C to 70°C (32°F to 158°F) |
| Standards Compliance | OSFP MSA, CMIS 5.0, IBTA BER Standards, RoHS Compliant |
| Target Applications | 800G ConnectX-8 / ConnectX-7 NIC to NIC Interconnects, DGX H100 Cluster Links, Liquid-Cooled Server Trays |



