MMA2P00-ASNVIDIA/Mellanox MMA2P00-AS Compatible 25G SFP28 SR Transceiver Module 100m on OM4 / 70m on OM3 at 25G100m on OM3 at 10G
This NVIDIA/Mellanox MMA2P00-AS compatible transceiver provides 25G connectivity in a hot-swappable SFP28 package. Its optical design operates at 850nm for up to 100m on OM4 / 70m on OM3 at 25G100m on OM3 at 10G, using Duplex LC. Complete parameters and related OEM references help structured fiber installations preserve a documented and serviceable optical channel.
OEM Part Number: MMA2P00-ASHT Part Number: SFP-25GMSR-85
Product Highlights
- Compatible alternative to NVIDIA/Mellanox MMA2P00-AS
- 25G connectivity at Dual Rate 10Gbps and 25.78Gbps
- Optical wavelength: 850nm
- Specified reach: 100m on OM4 / 70m on OM3 at 25G100m on OM3 at 10G
- Duplex LC / MMF interface
- Digital diagnostic monitoring: Supported
- Operating temperature: 0 to 70°C (32 to 158°F)
Specifications
| Mellanox Compatible | MMA2P00-AS |
|---|---|
| Manufacturer | HT |
| HT Part Number | SFP-25GMSR-85 |
| Form Factor | SFP28 |
| Max Data Rate | Dual Rate 10Gbps and 25.78Gbps |
| Wavelength | 850nm |
| Max Cable Distance | 100m@OM4/70m@OM3 at 25G100m@OM3 at 10G |
| Connector | Duplex LC |
| Media | MMF |
| Transmitter Type | VCSEL |
| Receiver Type | PIN |
| TX Power | -8.4~2.4dBm |
| Minimum Receiver Power | ＜-10dBm |
| Power Budget | 1.6dB |
| Receiver Overload | 2.4dBm |
| Power Consumption | ≤1W |
| Extinction Ratio | 2dB |
| CDR | TX & RX Built-in CDR |
| Inbuilt FEC | No |
| Commercial Temperature Range | 0 to 70°C (32 to 158°F) |
| Protocols | IEEE 802.3by, SFP28 MSA, SFF-8472, SFF-8431, CPRI, eCPRI |
| Core Size | 50/125 µm |
| Packaging Technology | COB Packaging |
| DDM/DOM | Supported |
Applications and Optical Link Design
Typical deployments include switch-to-switch, switch-to-server and aggregation links inside a data hall or between adjacent equipment rooms. The Duplex LC interface connects to the specified multimode cabling, and the stated reach depends on fiber grade and link loss. Keep this interface on the matching multimode optical standard rather than connecting it directly to a single-mode wavelength or reach variant.
Before deployment, check the host port type, supported data rate and firmware requirements. The 25G interface configuration must match the remote equipment; sharing a SFP28 housing alone does not make two transceiver types interoperable.
For this multimode module, confirm fiber grade, modal bandwidth and total loss before commissioning. The 100m on OM4 / 70m on OM3 at 25G100m on OM3 at 10G figure applies only under suitable cabling conditions. Inspect every Duplex LC mating point and match the remote optical standard.
NVIDIA/Mellanox Compatibility and Factory Testing
The module is checked for host recognition as MMA2P00-AS, 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.
Optical Acceptance, Diagnostics and Handling
For this model, the specified transmit-power range is -8.4~2.4dBm; the stated optical power budget is 1.6dB. 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. Diagnostic monitoring is listed as Supported. 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.
Structured Fiber Pathways and Serviceability
Treat the transceiver as part of the complete channel. Follow the intended patch-panel route, maintain bend control and leave service access around the port. Confirm connector polish and fiber type at every mated pair; a documented service allowance is preferable to excess slack concealed inside a rack. For this model, the principal parameters are data rate Dual Rate 10Gbps and 25.78Gbps, wavelength 850nm, rated reach 100m on OM4 / 70m on OM3 at 25G100m on OM3 at 10G.
Ordering Information
Quote HT part number SFP-25GMSR-85 together with OEM reference MMA2P00-AS 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.
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.
Quality Assurance and Packaging
Each MMA2P00-AS compatible module is inspected, powered up and functionally checked before protective packing. Dust caps and individual trays shield the interface during transport. 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 MMA2P00-AS, not an original NVIDIA/Mellanox-branded module.
Which fiber and connector are required?
Use Duplex LC with MMF. The specified maximum reach is 100m on OM4 / 70m on OM3 at 25G100m on OM3 at 10G, 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.
