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NVIDIA Mellanox MAM1Q00A-QSA28-S QSFP28 to SFP28 port adapter
QSFP28 to SFP28 port adapter (QSA28): lets a QSFP28 port run one SFP-type module at 25 Gbps (or 10/1 Gbps). NVIDIA LinkX part.
- Manufacturer
- NVIDIA Corporation (Mellanox)
- Mfr part number
- MAM1Q00A-QSA28-S
- Series
- LinkX 25G QSFP28 adapter
- Category
- Port adapters
- Datasheet
- MAM1Q00A-QSA28-S datasheet (PDF)
MAM1Q00A-QSA28-S specifications
| Attribute | Value |
|---|---|
| Part Number | MAM1Q00A-QSA28-S |
| Manufacturer | NVIDIA Corporation (Mellanox Technologies) |
| Brand | NVIDIA Mellanox |
| Standard | QSFP28 to SFP28 port adapter (QSA28) |
| Form Factor | QSFP28 adapter, hot-swappable |
| Data Rate | 25 Gbps (or 10/1 Gbps) |
| Protocol | Ethernet |
| Wavelength | N/A (adapter) |
| Media | Per inserted module (SFP28 / SFP+ / SFP) |
| Max Distance | Per inserted module |
| Connector | QSFP28 plug / SFP28 cage |
| Lifecycle | Legacy / end-of-life (stock on request) |
| Case Temp | 0 °C to 70 °C (commercial) |
| Dimensions | QSFP housing, accepts one SFP-type module |
| Compliance | SFF-8436 (QSFP) / SFF-8431 (SFP+) |
| Reach detail | depends on the SFP28 / SFP+ / SFP module inserted |
| Ordering note | Replaced by MAM1Q00A-QSA28. |
Values are from NVIDIA's LinkX product pages, ordering tables and firmware 'validated and supported cables and modules' lists (Oct 2026). Confirm platform and firmware support for your switch or adapter with us before ordering.
About the NVIDIA Mellanox MAM1Q00A-QSA28-S
The NVIDIA Mellanox MAM1Q00A-QSA28-S is a hot-swappable QSFP28 to SFP28 port adapter (QSA28) that fits a QSFP28 port and accepts an SFP-type module, so the port can run a 25 Gbps (or 10/1 Gbps) link. It is the -S ordering version of the QSA28 adapter; functionally the same as MAM1Q00A-QSA28, which replaced it. Typical uses: 25GbE server access, leaf-spine fabrics and 10G-to-25G migrations on ConnectX adapters and Spectrum switches.
- 25 Gbps QSFP28 to SFP28 port adapter
- -S ordering version of the QSA28 adapter
- Replaced by MAM1Q00A-QSA28
- QSFP28 plug / SFP28 cage · no software or licence needed
- Genuine NVIDIA Mellanox part · GST invoice · pan-India dispatch
MAM1Q00A-QSA28-S: frequently asked questions
What is the NVIDIA Mellanox MAM1Q00A-QSA28-S?
The MAM1Q00A-QSA28-S is a QSFP28 to SFP28 port adapter (QSA28) from NVIDIA's LinkX range. It plugs into a QSFP28 port on an NVIDIA / Mellanox switch or adapter and holds one SFP-type module, so that port can run a 25 Gbps (or 10/1 Gbps) link. It is used for 25GbE server access, leaf-spine fabrics and 10G-to-25G migrations on ConnectX adapters and Spectrum switches.
Which modules can I insert in the MAM1Q00A-QSA28-S?
Any SFP-type module the port adapter class supports: SFP28 / SFP+ / SFP modules. Reach, wavelength and connector then depend on that module, not on the adapter.
Is the MAM1Q00A-QSA28-S compatible with my NVIDIA / Mellanox switch or adapter?
It works in NVIDIA and Mellanox platforms with QSFP-type ports that list this part in their firmware 'validated and supported cables and modules' table. Send us your switch / adapter model and firmware version and we check it against NVIDIA's support list before dispatch, so you only receive a module that links up in your port.
Is the MAM1Q00A-QSA28-S still available?
NVIDIA has marked the MAM1Q00A-QSA28-S legacy / end-of-life, so it is no longer in regular production. Next Gen Networks sources genuine new and surplus stock on request. Replaced by MAM1Q00A-QSA28. Tell us the quantity and we will confirm availability, or suggest the current NVIDIA equivalent.
Is your MAM1Q00A-QSA28-S genuine NVIDIA / Mellanox?
Yes. Next Gen Networks supplies original NVIDIA (Mellanox) LinkX parts, not third-party lookalikes or grey-market stock. Every unit is checked before dispatch and we share serial numbers on request so you can verify them with mlxlink / mlxcables or the switch's transceiver inventory.
What is the MAM1Q00A-QSA28-S price in India and how do I order?
The NVIDIA Mellanox MAM1Q00A-QSA28-S price in India depends on quantity, delivery city and current stock. Next Gen Networks supplies it with a GST invoice (input tax credit ready) and pan-India dispatch from New Delhi. Send the part number, quantity and delivery city on WhatsApp +91-7827955775 or email Sales@nextgennetworks.in and we reply with a GST quote.
Documents
NextGen datasheetPDF · specs, FAQ & buying guideDownload datasheet
Mellanox_MAM1Q00A-QSA28-S_Datasheet_NextGenNetworks.pdfNVIDIA LinkX documentation
Manufacturer product pages
Related NVIDIA Mellanox parts
MAM1Q00A-QSA28QSFP28 to SFP28 port adapter, Per inserted moduleMMA2P00-AS25GBASE-SR / 10GBASE-SR, 70 m OM3 / 100 m OM4MMA2P00-AS-SP25GBASE-SR, 100 m OM4MMA2P00-AS_FF25GBASE-SR, 100 m OM4MMA2P00-ASHT25GBASE-SR, 100 m OM4MMA2L20-AR25GBASE-LR / 10GBASE-LR, 10 km SMFAI / HPC cluster, government, PSU and enterprise orders welcome. GST invoice and pan-India delivery.
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