NVIDIA/Mellanox MMA4Z00-NS400 Compatible 400G SR4 Single-port OSFP 850nm MMF Transceiver (Broadcom/Coherent VCSEL & Broadcom DSP, Flat Top/RHS, MPO-12/APC, 980-9I51S-00NS00)
- Brand: NVIDIA/Mellanox
- Product Code: 980-9I51S-00NS00
- Availability: In Stock
Model / Part Number: MMA4Z00-NS400 (980-9I51S-00NS00 / OSFP-400G-SR4H)
Brand: Broadcom DSP & Broadcom VCSEL / Coherent VCSEL & Broadcom DSP Compatible (NVIDIA / Mellanox Original Equivalent)
Transceiver Module : NVIDIA/Mellanox MMA4Z00-NS400 Compatible 400G SR4 InfiniBand NDR & 400G Ethernet Optical Transceiver Module, Single-port OSFP Form Factor, 850nm Wavelength, Multimode Fiber (MMF), 30m (OM3) / 50m (OM4) Reach, Single MPO-12/APC Optical Connector, DOM Support, RHS / Flat Top Shell
The MMA4Z00-NS400 (980-9I51S-00NS00 / OSFP-400G-SR4H) is a high-performance 400Gb/s Single-port OSFP optical transceiver engineered for AI supercomputing, high-density host adapters (ConnectX-7), BlueField-3 DPUs, and enterprise cloud fabrics. Available in two industry-leading hardware configurations—Broadcom DSP & Broadcom VCSEL or Coherent VCSEL & Broadcom DSP—this 4-channel parallel multimode module operates at 850nm using 100G-PAM4 modulation to ensure exceptionally low Bit Error Rates (BER) and maximum link stability.
Designed with a Riding Heat Sink (RHS / Flat-Top) OSFP shell, the MMA4Z00-NS400 is ideal for liquid-cooled servers, DGX compute nodes, and adapter cards. Utilizing a single MPO-12/APC optical connector, it supports direct 400G multimode links up to 50 meters on OM4 fiber. Furthermore, when connected to a 1:2 splitter fiber cable, the transceiver automatically detects the 2-channel split end and scales down to 200G speed, significantly reducing operational power consumption.
Key Features
- Dual Chipset Options: Flexible hardware options featuring Broadcom DSP paired with either Broadcom VCSEL or Coherent VCSEL silicon to suit network infrastructure needs.
- Auto-Sensing 200G Power Reduction: Automatically activates 2 channels when linked to 1:2 splitter cables, establishing a 200G link while optimizing energy efficiency.
- RHS / Flat-Top OSFP Enclosure: Low-profile flat-top design tailored for network adapters (ConnectX-7 / BlueField-3), DGX systems, and liquid-cooled environments.
- Single MPO-12/APC Optical Connector: Delivers clean 4-channel 100G-PAM4 optical transmission over parallel MMF up to 30m (OM3) or 50m (OM4).
- Full InfiniBand NDR & 400G Ethernet Compliance: 100% verified compatible with NVIDIA QM9700/QM9790 infrastructure, IBTA Industrial BER standards, and OSFP MSA.
- Ultra-Low Power Consumption: Highly efficient operation (≤9W max power) equipped with Digital Optical Monitoring (DOM), CMIS 4.0, and RoHS compliance.
Technical Specifications
| Part Number / Model | MMA4Z00-NS400 (980-9I51S-00NS00 / OSFP-400G-SR4H) |
| Silicon / Chip Solutions | Option 1: Broadcom DSP & Broadcom VCSEL Option 2: Coherent VCSEL & Broadcom DSP |
| Form Factor / Shell | Single-port OSFP (Riding Heat Sink - RHS / Flat Top) |
| Data Rate / Protocols | 400Gbps (Auto-switchable to 200G via Splitter) | InfiniBand NDR & 400G Ethernet Compliant |
| Optical Specification | 400G-SR4 Parallel Multimode (850nm VCSEL Transmitter, PIN Receiver) |
| Optical Connector | Single MPO-12/APC (Angled Physical Contact) |
| Media Type & Reach | Multimode Fiber (MMF) | Up to 30m on OM3 / Up to 50m on OM4 |
| Modulation (Electrical / Optical) | 4x 106.25Gb/s PAM4 (Electrical) / 4x 106.25Gb/s PAM4 (Optical) |
| Power Consumption | ≤9W Operating Power |
| Case Operating Temperature | 0°C to 70°C (32°F to 158°F) |
| Standards & Diagnostics | OSFP MSA, CMIS 4.0, DOM Supported, RoHS Compliant, IBTA BER Standards |
| Target Applications | ConnectX-7 HCAs, BlueField-3 DPUs, 800G to 2x400G Breakout Links, NVIDIA QM9700/QM9790 Platforms |
