Manufacturer reference image. Included components follow the selected part number.

OPTICAL TRANSCEIVER

MMS4A50-XM-RHS

NVIDIA MMS4A50-XM-RHS

P/N:MMS4A50-XM-RHSSKU: 980-9IAS1-00XM00SwitchInfra item:7900Brand: NVIDIA
Specifications
Mediasingle-mode fiber
imageNoteManufacturer reference image. Included components follow the selected part number.
Power28 W maximum
ConnectorsOSFP electrical; two duplex-LC optical ports
Part NumberMMS4A50-XM-RHS
Branch count2
Lane mapping8 x 200G-PAM4 electrical channels
Wavelength nmCWDM grid: 1271, 1291, 1311, 1331 nm nominal
Thermal profileRHS
Interconnect typeoptical_transceiver_FRO
Branch data rate (Gb/s)800
Aggregate data rate (Gb/s)1600
Case temperature (degrees C)0 to 70
Maximum optical or copper line reach (m)2000

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.
Description
NVIDIA twin port transceiver, 2xFR4, 1600Gbps, OSFP, 2xLC-LC, 1310nm SMF, up to 2km, RHS, FRO, XDR + Ethernet

Product questions & answers

How is the 1.6T link presented optically?

The exact ordering row specifies twin-port 2xFR4 with two duplex-LC single-mode interfaces, nominal 1310 nm-class wavelengths and reach up to 2 km.

How should IHS and RHS be chosen?

NVIDIA describes IHS for air-cooled Quantum-3 / Spectrum-6 switches and RHS for liquid-cooled variants. Confirm the actual switch configuration.

What power should be used for planning?

The current product specification lists 28 W maximum. An older deprecated parts-list snippet is not the governing source.

Is the per-port optical lane statement ready to publish?

No. The page contains conflicting channel/rate wording. This package keeps the confirmed 2xFR4 identity and electrical lane data while holding the inconsistent optical lane statement.

Is it safe to look into a connected optical port?

No. Never look directly into an energized optical port or connected fiber; its infrared light can be invisible.

Can DR4 and FR4 be directly linked?

No. DR4 uses parallel optical channels; FR4 multiplexes wavelengths onto a fiber pair. Match the optical format at both ends.

Describe what you need. You can start without a confirmed quantity or host model.

Channel and project resources

Move your next customer decision forward

Start with your current portfolio, a product family or an incomplete project list. Choose the material that fits your responsibility.

OA03 · NVIDIA

AI Ethernet, adapters and optical or cable interconnects.

980-9IAS1-00XM00

BOM and open-items review

Keep the original part numbers and quantities together with the questions that affect a project decision.

Start with
Your existing list, uploaded BOM or a short description of the requirement. Incomplete lists are welcome.
Use this to prepare
An open-items table with original line references, missing inputs, responsible people and next actions.
Share your project list →Read the practical brief (English)Download the worksheet