NVIDIA Mellanox® MFS1S90-H003E — HDR InfiniBand Active Optical Splitter Cable, 3m
Technical Identity
The NVIDIA Mellanox® MFS1S90-H003E is a 3-meter HDR InfiniBand Active Optical Splitter Cable (AOC) from the LinkX product family. One end carries a single QSFP56 connector running at 200 Gb/s (HDR, 4 lanes × 50G PAM4); the opposite end splits into two QSFP56 connectors, each running at 100 Gb/s (HDR100, 2 lanes × 50G PAM4). This is a hybrid splitter end / adapter ends configuration intended to fan-out one 200G switch port into two 100G host ports. New, factory-sealed, supplied by T.E.S IT-SOLUTIONS.
Specifications
Brand: NVIDIA (Mellanox)
Manufacturer P/N (MPN): MFS1S90-H003E
Product family: NVIDIA LinkX HDR Active Optical Splitter Cable
Cable category: Active Optical Cable (AOC), splitter / breakout
Protocol: InfiniBand HDR / HDR100 (IBTA-compliant)
Switch-side connector: 1× QSFP56, 200 Gb/s (HDR, 4×50G PAM4)
Host-side connectors: 2× QSFP56, 100 Gb/s each (HDR100, 2×50G PAM4)
Aggregate bandwidth: 200 Gb/s split as 2× 100 Gb/s
Cable length: 3 m
Fiber type: 850 nm VCSEL, multi-mode (OM3/OM4-equivalent integrated)
Signal integrity: Active retiming and equalization on each transceiver end
Diagnostics: DDM (temperature, supply voltage, TX bias, TX/RX optical power) via I²C / MCTP
Form factor compliance: SFF-8665 (QSFP56), IBTA HDR
Power class: Drawn from host port (no external supply); class consistent with QSFP56 active optical
Operating temperature: 0 °C to 70 °C (commercial)
Condition: New, factory-sealed
Stock / shipping: EU stock, global B2B express shipping
What This Is NOT
NOT a passive copper DAC. This is an active optical splitter using integrated VCSEL multi-mode fiber engines — far longer reach than copper, but the optics are permanently fused and not removable.
NOT a transceiver. The MFS1S90-H003E is a fixed-length cable assembly. The QSFP56 ends are not pluggable modules — they cannot be paired with separate patch fiber.
NOT a 1-to-1 cable. This is a 1:2 splitter / breakout: one 200G QSFP56 end → two independent 100G QSFP56 ends. Both downstream ends must terminate in HDR100-capable QSFP56 ports.
NOT an Ethernet cable. The MFS1S90-H series is InfiniBand-only (HDR / HDR100). It is not validated for 200GbE / 100GbE Ethernet split modes; for Ethernet splitter use cases choose a -V variant or Spectrum-validated SKU.
NOT bundled with adapters, transceivers, or rack accessories — sold standalone.
Compatibility
Switch side (1× QSFP56 200G HDR): NVIDIA Quantum HDR switches (MQM8700 / MQM8790 series, 40-port 200G HDR) when port is configured in 2× HDR100 split mode.
Host side (2× QSFP56 100G HDR100): NVIDIA ConnectX-6 / ConnectX-6 Dx / ConnectX-6 VPI adapters and BlueField-2 DPUs operating in HDR100 (1× 100G QSFP56) port mode. Also compatible with ConnectX-5 HDR100 single-port QSFP28-class HDR100 platforms via QSFP56→QSFP56 cage when port mode supports it.
Protocol: InfiniBand HDR / HDR100 only. Not validated for native Ethernet operation on this SKU.
Reach: 3 m fixed — sized for intra-rack ToR-to-server fan-out and short adjacent-rack runs.
Power: Drawn entirely from QSFP56 host port — no external power required.
Always verify: switch firmware level supports the 2× HDR100 split port mode, adapter firmware and driver (MLNX_OFED / DOCA) match generation, and the rack plan accommodates 3 m fan-out routing before deployment.
Frequently Asked Questions (FAQ)
Q. What is the NVIDIA Mellanox MFS1S90-H003E?
The MFS1S90-H003E is a 3-meter NVIDIA Mellanox HDR InfiniBand Active Optical Splitter Cable. It connects one 200 Gb/s HDR QSFP56 switch port to two 100 Gb/s HDR100 QSFP56 host ports, letting a single switch port serve two independent InfiniBand endpoints.
Q. What is the splitter configuration on this cable?
One end: a single QSFP56 connector at 200 Gb/s HDR (4 lanes × 50G PAM4). Other end: two independent QSFP56 connectors, each at 100 Gb/s HDR100 (2 lanes × 50G PAM4). The two downstream legs are electrically independent and can attach to two separate hosts or two ports on the same host.
Q. Is the MFS1S90-H003E InfiniBand only, or does it support Ethernet?
The MFS1S90-H series (-H suffix) is InfiniBand-only — HDR on the 200G end and HDR100 on the two 100G ends. It is not validated for native 200GbE / 2× 100GbE operation. For Ethernet splitter deployments, select an Ethernet-validated SKU such as a Spectrum-targeted -V variant.
Q. What hardware is the MFS1S90-H003E compatible with?
Switch side: NVIDIA Quantum HDR switches (e.g., MQM8700 / MQM8790 series) with the upstream QSFP56 port configured in 2× HDR100 split mode. Host side: NVIDIA ConnectX-6 / ConnectX-6 Dx / ConnectX-6 VPI adapters and BlueField-2 DPUs running in HDR100 mode. Always verify switch firmware, adapter firmware, and MLNX_OFED / DOCA driver versions support the split-port configuration.
Q. Where is the MFS1S90-H003E typically deployed?
At 3 m, typical use is intra-rack Top-of-Rack (ToR) Quantum HDR switch to GPU / compute servers — fanning out one 200G HDR port into two 100G HDR100 host links to double port density without adding switch ASIC count. Common in HPC compute fabrics, AI training cluster east-west links, and dense GPU pods.
Q. What condition is supplied by T.E.S IT-SOLUTIONS?
New, factory-sealed in original NVIDIA packaging. Every unit is logged by MPN before shipping. All units ship from EU stock with professional anti-static packaging and global B2B shipping. Technical consultation for HPC / AI fabric design and split-mode port configuration is included at no extra cost.
Why buy from T.E.S IT-SOLUTIONS
T.E.S IT-SOLUTIONS is a Europe-based NVIDIA Mellanox specialist serving HPC, AI, and enterprise data-center procurement teams since 2007. We focus on a single brand so every unit is identified by MPN, NVIDIA P/N, and ASIC generation before it ships, and every customer gets free pre-sale compatibility advice for switch, adapter, and cable pairing. Multi-currency B2B invoicing, EU stock with worldwide express options, and direct technical contact with our engineering team — not a call-center.