Is the 835040-001 cable Ethernet or InfiniBand?

This part number (835040-001 / MFA1A00-E005) is specifically coded for InfiniBand EDR (100Gb/s). While the physical connector (QSFP28) is the same as 100Gb Ethernet, the protocol is different. It is designed for low-latency HPC environments.

Can I use this 5m AOC to replace a 5m DAC?

Yes, and it is often an upgrade. A 5m DAC is very thick and heavy. This AOC performs the same function but is lighter, more flexible, and puts less physical stress on your switch ports.

Does this cable support 4x25G breakout?

No, this is a direct QSFP-to-QSFP cable designed for 1:1 connections (100G to 100G). It cannot be split into four separate links.

HPE Mellanox® 835040-001 InfiniBand EDR 100Gb/s Active Optical Cable (AOC): This is a high-speed active optical interconnect designed specifically for InfiniBand EDR (Enhanced Data Rate) fabrics. It integrates premium multi-mode fiber optics with embedded transceivers into a QSFP28 form factor, enabling reliable 100Gb/s connectivity over 5 meters. This is a fixed-length integrated cable assembly, not a transceiver with a detachable patch cord, ensuring minimized signal attenuation and zero optical contamination risks common with manually patched fiber.

🔧 Technical Specifications

OEM: HPE
P/N: 835040-001 (Equivalent to MFA1A00-E005 / 980-9I13J-00E005)
Data Rate: EDR (100Gb/s InfiniBand)
Length: 5m (Active Optical)
Connector Type: QSFP28 to QSFP28
Power Consumption: < 2.5W per end (Typical)

🌐 Engineering Context: At 5 meters, passive copper cables become thick, heavy, and difficult to route, often causing "port sag." This AOC solution provides a lightweight, flexible alternative with a tighter bend radius and superior signal reach. Compared to copper equivalents, it offers complete "EMI Immunity," critical for High-Performance Computing (HPC) clusters where data integrity cannot be compromised by electrical noise. It maintains the "Deterministic Latency" required for RDMA (Remote Direct Memory Access) operations.

🧠 Typical Use Cases

HPE Apollo and ProLiant Gen10 Servers connecting to InfiniBand Fabric.
Low-latency HPC Clusters and Supercomputing Nodes.
Storage clusters utilizing RDMA over InfiniBand (RoCE support varies by firmware).
Inter-rack connectivity where copper reach is insufficient (5m+).

✅ Compatible With: HPE Apollo Systems, HPE ProLiant Servers (DL380, XL170r, etc.) with ConnectX-4/ConnectX-5 VPI Adapters, and Mellanox Switch-IB™ 2 Series Switches (SB7800/SB7890). (Requires ports configured for InfiniBand EDR operation).

❌ NOT Compatible With: Standard 100GbE Ethernet switches (unless the port is VPI-capable and explicitly configured for InfiniBand mode). Not backward compatible with legacy QDR (40G) ports without auto-negotiation confirmation.

⚠️ Handling Precautions: Although the jacket is robust, the internal media is optical fiber (glass). Do not exceed a bend radius of 30mm. Avoid "pinching" the cable with zip ties; use Velcro straps to bundle cables in the rack. Ensure the pull-tab is used for extraction, never pull by the cable jacket.

🌡️ Airflow Efficiency: The thin profile of this AOC compared to a 5m 26AWG copper cable significantly improves exhaust airflow at the switch faceplate, reducing the thermal load on the rack infrastructure.

🤝 Why Choose T.E.S IT-SOLUTIONS? We specialize in enterprise-grade HPE and NVIDIA networking solutions. Every unit is strictly validated for InfiniBand EDR performance in our lab. We offer expert consultation, fast worldwide shipping, and a comprehensive warranty to ensure your data center infrastructure runs without compromise.

HPE Mellanox® 835040-001 Active Optical Cable EDR up to 100Gb/s 5m

Name: HPE Mellanox® 835040-001 Active Optical Cable EDR up to 100Gb/s 5m
SKU: 835040-001_Refurbished

SKU: 835040-001_Refurbished

€260.00

Quantity