10/100BASE-T SFPNVIDIA/Mellanox OSFP-800G-4OPC Compatible 800G OSFP 8 x 100G PAM4 IHS/Finned Top to 4 x 200G OSFP 2 x 100G PAM4 IHS/Finned Top Ethernet Passive Copper Breakout Cable
For equipment that specifies NVIDIA/Mellanox OSFP-800G-4OPC, this HT-manufactured DAC family offers 800G direct-attach connectivity with OSFP (IHS/Finned Top) to 4x OSFP (IHS/Finned Top). Rather than treating different OEM length codes as interchangeable, the available configurations below link to their own product pages. Mechanical details, installation planning and factory checks are included for engineering and purchasing review.
Series Part Number: OSFP-800G-4OPCHT Part Number: OSFP-800G-4OPC
Product Highlights
- HT-manufactured compatible alternative for NVIDIA/Mellanox OSFP-800G-4OPC
- 800G aggregate connectivity at 800Gbps
- Interface configuration: OSFP (IHS/Finned Top) to 4x OSFP (IHS/Finned Top)
- Passive Breakout DAC / Copper
- Length configurations covered: 1m (3ft)
- Conductor specification: 28AWG
- Power consumption: 0.1W (800G End), 0.1W (200G Per End)
- Operating temperature: 0 to 70°C (32 to 158°F)
Available Lengths and Corresponding Part Numbers
The documented series configuration is 1m (3ft). Use the relevant OEM reference below together with the HT identity and required length when requesting a quotation. If another length carries a different OEM part number, it must be reviewed and ordered as that distinct configuration.
Compatible OEM Part Numbers
- OSFP-800G-4OPC01
Specifications
| HT Part Number | OSFP-800G-4OPC |
|---|---|
| Manufacturer | HT |
| Form Factor | OSFP (IHS/Finned Top) to 4x OSFP (IHS/Finned Top) |
| Max. Data Rate | 800Gbps |
| Media | Copper |
| Cable Type | Passive Breakout DAC |
| Cable Length Options Covered | 1m (3ft) |
| Wire AWG | 28AWG |
| Minimum Bend Radius | 31mm |
| Max. Power Consumption | 0.1W (800G End), 0.1W (200G Per End) |
| Jacket Material | PVC (OFNR) |
| Commercial Temperature Range | 0 to 70°C (32 to 158°F) |
| Modulation Format | 8x100G-PAM4 to Quad 2x100G-PAM4 |
| Application | 800G/200G Ethernet |
| Protocols | OSFP MSA, CMIS Rev4.0, IEEE 802.3ck |
Applications and Deployment
A passive DAC reduces the connection to one factory-terminated electrical assembly. This is useful where low latency, low interface power and a short managed route matter more than optical reach. Cable gauge, connector construction and host port settings still influence whether the complete link operates reliably. For this series, the listed interface is OSFP (IHS/Finned Top) to 4x OSFP (IHS/Finned Top) and the aggregate rate is 800G. The stated application is 800G/200G Ethernet.
Quality Assurance and Packaging
Each assembly receives a visual connector inspection and functional link check before it is coiled and protected. Packaging is selected to avoid compressing the cable into a tight bundle, and optional rack-based labels help maintain an orderly installation when many identical interfaces are populated together. Both connector ends are inspected as part of the complete assembly, and protective packing is selected to avoid tight bends during transport and storage.
Cable Construction and Routing
For this assembly, the conductor specification is 28AWG; the jacket material is PVC (OFNR); the minimum bend radius is 31mm; the operating temperature is 0 to 70°C (32 to 158°F); the power consumption is 0.1W (800G End), 0.1W (200G Per End). These parameters belong in the installation review rather than being treated as catalogue trivia. Route the cable through its intended managers without tension, avoid pressure close to the connector boots and leave enough space to operate the latches. Any service loop must respect the stated bend limit.
High-Density Rack Integration
In a densely populated rack, connector access and airflow are part of the link design. Choose the shortest length that follows the managed path comfortably, avoid tight bundles around the connector housings and preserve room for latch operation. Where power consumption is listed, include every populated interface in the host thermal budget rather than assessing a single cable in isolation. For this series, keep the interface rate, DAC construction and length-specific OEM reference together throughout that review.
Ordering Information
Provide the exact part number, length, quantity and target interface density. For multi-rack projects, list each length separately and identify any preferred carton grouping. Host model and software information can be included for a compatibility review before production or dispatch. For this series, follow the corresponding length link, quote that exact OEM part number and keep different lengths on separate order lines. HT part number OSFP-800G-4OPC identifies the product family; the linked page provides the final length-specific identity.
NVIDIA/Mellanox Compatibility and Factory Testing
The assembly is evaluated for host recognition and stable link operation, with diagnostics checked where the interface provides them. This approach verifies more than electrical or optical continuity. Exact platform and firmware information remains valuable in high-density deployments because port mode and qualification policy can differ within the same connector family. Series-level inspection is followed by the exact length and OEM configuration selected for dispatch. Functional verification includes link establishment and diagnostic indications where the host exposes them.
Shipping and Lead Time
Standard configurations normally ship within one to three working days, with production lead times confirmed for larger quantities. International courier, air freight and sea freight are available; customer courier accounts and nominated forwarders are accepted.
Frequently Asked Questions
Is this an original NVIDIA/Mellanox cable?
No. It is an HT-manufactured compatible cable for equipment that specifies OSFP-800G-4OPC, not an original NVIDIA/Mellanox-branded product.
Are different lengths and OEM part numbers separate products?
Yes. Where a length has its own OEM reference, follow the corresponding link above and order that exact part number on its own line. Do not substitute another length only because the connector arrangement is the same.
Does this DAC cable require separate modules at each end?
No. The connector ends and cable form one complete direct-attach assembly. The ends are not detachable standalone transceivers, and the complete product is tested together.
What information helps confirm compatibility?
Provide the equipment manufacturer and model, port type, hardware revision and software release, together with the required OEM reference, length and quantity. Breakout projects should also identify the intended lane configuration.
