800G OSFP112 to 2x 400G OSFP112-RHS Passive DAC Cable Specifications
| Link role | A OSFP112 uplink to 2x OSFP-RHS fan-out link for port consolidation, staged speed migration, and high-density server or accelerator attachment. |
|---|---|
| Endpoint form factor | OSFP112 to 2x OSFP-RHS; lane breakout must be enabled on the host port |
| Aggregate data rate | 800G |
| Lane / channel detail | 800G aggregate split across the endpoint legs shown in the product name |
| Length guidance | Up to 2 m |
| Power approach | Passive cable assembly; no active optical engine |
| Standards / management | Products Compliance with CMIS, OSFP MSA; Ethernet Compliance with IEEE 802.3ck |
| Cable construction | Varies by length and assembly option; copper twinax assembly |
| Operating temperature | 0°C to 70°C (commercial) |
| Configuration status | Standard and custom options must be confirmed in the quotation and approved BOM |
Search terminology for this configuration includes 800G OSFP RHS cable, OSFP RHS breakout, AI NIC specific DAC. These phrases describe the same purchase task only when the endpoint form factor, breakout ratio and lane map, and ordered length match this page.
Standards context: IEEE 802 standards catalog · SNIA SFF technology affiliates · OSFP MSA specifications.
When to Use This 800G Passive DAC
- Use it for fan-out links with OSFP112 to 2x OSFP-RHS endpoints when the routed path stays within up to 2 m.
- Choose passive copper when low cable power and simple installation matter more than reach or cable diameter.
- Confirm that the source port supports the required breakout mode and that each leg maps to the intended downstream port.
Compatibility and Acceptance Checklist
- Confirm the connector at each end: OSFP112 to 2x OSFP-RHS.
- Confirm the required aggregate rate and host lane mode: 800G aggregate split across the endpoint legs shown in the product name.
- Measure the routed path, not the straight-line rack distance; the current datasheet states up to 2 m.
- Send switch/NIC part numbers and firmware versions for coding review; no platform-specific compatibility is assumed without validation.
- Provide the lane-to-leg map, leg labels, and branch length before production approval.
- Enable and validate host breakout mode before acceptance testing each downstream leg independently.
- Specify commercial or industrial temperature requirements and the requested jacket/label/packaging details.
- At receipt, verify labels and part numbers, inspect latches and cable jackets, then test the complete link at the intended data rate.
Ordering Options
| Part Number | Description | Length | AWG | Length Tolerance |
|---|---|---|---|---|
| BWN-DAC-OSFP-2OSFP-RHS-800G-0.5M | 800G OSFP to 2×400G OSFP-RHS Passive DAC | 0.5 m | 30 | ±15 mm |
| BWN-DAC-OSFP-2OSFP-RHS-800G-01M | 800G OSFP to 2×400G OSFP-RHS Passive DAC | 1 m | 30 | ±25 mm |
| BWN-DAC-OSFP-2OSFP-RHS-800G-1.5M | 800G OSFP to 2×400G OSFP-RHS Passive DAC | 1.5 m | 28 | ±30 mm |
| BWN-DAC-OSFP-2OSFP-RHS-800G-02M | 800G OSFP to 2×400G OSFP-RHS Passive DAC | 2 m | 26 | ±35 mm |
| BWN-DAC-OSFP-2OSFP-RHS-800G-03M | 800G OSFP to 2×400G OSFP-RHS Passive DAC | 3 m | 26 | ±45 mm |
| BWN-DAC-OSFP-2OSFP-RHS-800G-xxM | 800G OSFP to 2×400G OSFP-RHS Passive DAC | Custom | Custom | – |
Common Procurement Objections
Will it work in my switch or NIC?
Form factor and standards alignment are necessary but not sufficient. Send the exact host model, firmware, port mode, length, and coding requirement for a compatibility review.
Which length should I order?
The current datasheet lists up to 2 m. Measure the routed path, include a controlled service loop, and avoid ordering unnecessary slack.
Should I use AOC instead?
Use an ACC when a copper route exceeds the practical passive budget but remains short. Use an AOC when the route needs more distance, a lighter cable body, or EMI immunity.
Can BWNFiber customize the assembly?
Datasheet ordering tables include standard and/or custom entries. Submit the endpoint, length, label, jacket, coding, temperature, packaging, and quantity requirements for feasibility confirmation.
Related High-Speed Cable Options
Request a Configuration Review
Send endpoint models, firmware, port mode, length, quantity, temperature, labeling, packaging, and acceptance requirements. BWNFiber can return a proposed cable code and BOM for review.
