Manufacturer reference image. Included components and condition follow the selected item.
NETWORK CABLE
NVIDIA MFA1A00-C020 — 20 m 100GbE QSFP28 active optical cable
- Connector
- QSFP28 to QSFP28
- Media
- multimode optical fiber (MMF), VCSEL-based integrated engines; LSZH
- Power
- 2.2 W typical / 2.5 W maximum per end with all lanes retimed
Before you order
- Confirm the exact SKU, part number, specification option and quantity.
- Confirm the host platform, port, electrical interface and firmware requirements.
- Confirm availability, lead time, destination and applicable service terms before payment.
| Media | multimode optical fiber (MMF), VCSEL-based integrated engines; LSZH |
|---|---|
| Power | 2.2 W typical / 2.5 W maximum per end with all lanes retimed |
| Connectors | QSFP28 to QSFP28 |
| Part Number | MFA1A00-C020 |
| Branch count | 1 |
| Lane mapping | 4 x 25G-NRZ; Ethernet lane signaling 25.78125 Gb/s |
| Thermal profile | standard QSFP28 cable-end shells |
| Breakout topology | None; straight one-to-one |
| Interconnect type | AOC |
| Branch data rate (Gb/s) | 100 |
| Minimum bend radius (mm) | 30 |
| Nominal cable length (m) | 20 |
| Aggregate data rate (Gb/s) | 100 |
| Case temperature (degrees C) | 0 to 70 |
| Manufacturer lifecycle phase | EOL [HVM] |
Product questions & answers
What do the -C variants support?
The exact C015, C020 and C050 ordering and release rows identify 100GbE. Broad MFA1A00 family text also mentions EDR, but the exact -C rows do not establish EDR support.
How are the three variants different?
They are the 15 m, 20 m and 50 m versions of a QSFP28-to-QSFP28 active optical cable. Use the exact length-specific model in the cable schedule.
What are the lane and power characteristics?
The Ethernet design uses four 25G-NRZ lanes. With all lanes retimed, the specification gives 2.2 W typical and 2.5 W maximum per end.
What lifecycle context belongs on the page?
The exact three OPNs are EOL [HVM] in CX7 v28.50.1002. That is a manufacturer lifecycle statement, not a conclusion about a particular seller’s stock or the condition of a supplied unit.
Where does forward error correction take place?
The FAQ places FEC in the switch and network adapter. Match the supported endpoint configuration; a cable does not independently fix a FEC mismatch.
Why can a cable have two minimum bend radii?
The connector exit generally needs a larger bend radius than the cable body. Follow the exact assembly drawing and leave adequate space behind the rack door.