NVIDIA/Mellanox MMS4X00-NM-T Compatible 800G Twin-port OSFP IHS/Closed Finned Top Transceiver Module
Built for hosts recognizing MMS4X00-NM-T, this HT-manufactured Twin-port OSFP IHS/Closed Finned Top module delivers 800G transmission at 1310nm. Its rated reach is 500m, with Dual MTP/MPO-12 APC as the physical interface. The specifications and engineering guidance below support procurement teams match an equipment parts list to a clearly defined optical product, while keeping HT manufacture separate from the OEM cross-reference.
OEM Part Number: MMS4X00-NM-THT Part Number: OSFP-DR8-800G
Product Highlights
- Compatible alternative to NVIDIA/Mellanox MMS4X00-NM-T
- 800G connectivity at 850Gbps (8x 106.25Gbps)
- Optical wavelength: 1310nm
- Specified reach: 500m
- Dual MTP/MPO-12 APC / SMF interface
- Factory compatibility verification and optical performance testing before shipment
Specifications
| NVIDIA/Mellanox Ethernet Compatible | MMS4X00-NM-T |
|---|---|
| Manufacturer | HT |
| HT Part Number | OSFP-DR8-800G |
| Form Factor | Twin-port OSFP IHS/Closed Finned Top |
| Max Data Rate | 850Gbps (8x 106.25Gbps) |
| Wavelength | 1310nm |
| Max Cable Distance | 500m |
| Connector | Dual MTP/MPO-12 APC |
| Media | SMF |
| Transmitter Type | EML |
| Receiver Type | PIN |
| TX Power | -2.9~4.0dBm |
| Minimum Receiver Power | -5.9dBm |
| Power Budget | 3dB |
| Receiver Overload | 4dBm |
| Max Power Consumption | 16.5W |
| Extinction Ratio | >3.5dB |
| Modulation (Electrical) | 8x100G-PAM4 |
| Modulation (Optical) | Dual 4x100G-PAM4 |
| Packaging Technology | COB (Chip on Board) Packaging |
| Modulation Format | PAM4 |
| CDR (Clock and Data Recovery) | TX & RX Built-in DSP |
| Inbuilt FEC | No |
| Protocols | OSFP MSA HW Rev 4.1, CMIS Rev 5.0, IEEE 802.3cu-2021, IEEE P802.3ck D2.2 |
Applications and Optical Link Design
Use this module for equipment interconnection over the specified single-mode fiber plant, including enterprise backbone, campus, metro or data-center interconnect links according to its rated distance. Confirm that both ends use the same optical standard and wavelength plan, and allow for connector, splice and patch-panel loss within the stated power budget.
Before deployment, check the host port type, supported data rate and firmware requirements. The 800G interface configuration must match the remote equipment; sharing a Twin-port OSFP IHS/Closed Finned Top housing alone does not make two transceiver types interoperable.
Before commissioning, measure the complete single-mode channel against the stated budget for 500m. Inspect every Dual MTP/MPO-12 APC connection and record diagnostic power where supported. Both ends must agree on rate, wavelength and optical standard.
Optical Acceptance, Diagnostics and Handling
For this model, the specified transmit-power range is -2.9~4.0dBm; the stated optical power budget is 3dB. Digital diagnostics make later maintenance easier when baseline values are captured at installation. Save the initial readings with the port and OEM reference, then investigate meaningful changes rather than reacting to a single transient value. Diagnostic support depends on the host as well as the module, so unavailable fields should be confirmed with the platform documentation. Before every insertion, keep dust caps in place until the patch lead is ready, avoid touching the optical end face and use an appropriate inspection and cleaning procedure. Do not look into an active optical interface.
Procurement and Asset Identification
A useful purchase order identifies the host platform, expected OEM code and optical standard separately. This prevents a module with the same housing but another wavelength, reach or identification profile from being substituted. For mixed deployments, keep one order line per OEM reference and reconcile each received unit with its intended port. For this model, the principal parameters are data rate 850Gbps (8x 106.25Gbps), wavelength 1310nm, rated reach 500m.
NVIDIA/Mellanox Compatibility and Factory Testing
The module is checked for host recognition as MMS4X00-NM-T, link establishment and diagnostic reporting. Physical cage fit alone is not treated as evidence of compatibility. Equipment model, hardware revision and software release can be reviewed before dispatch where platform behavior is uncertain.
Ordering Information
Quote HT part number OSFP-DR8-800G together with OEM reference MMS4X00-NM-T and quantity. Add the host model and software release when pre-order verification is required. Neutral labels, customer packaging and project-specific compatibility review are available on request.
Quality Assurance and Packaging
Quality control covers the optical or electrical interface, host identification and operating link. The verified unit is then individually protected and cartoned. Customer references, rack groups and project packing lists can be added for volume orders.
Frequently Asked Questions
Is this an original NVIDIA/Mellanox transceiver?
No. It is an HT-manufactured compatible alternative for equipment that specifies MMS4X00-NM-T, not an original NVIDIA/Mellanox-branded module.
Which fiber and connector are required?
Use Dual MTP/MPO-12 APC with SMF. The specified maximum reach is 500m, subject to fiber quality and total link loss.
Can it be mixed with another wavelength or reach version?
Only when the two ends share the same optical standard, wavelength plan and supported data rate. Check the exact part numbers and link budget rather than relying only on the module form factor.
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.