NVIDIA(Mellanox) MC2609130-001 Compatible 40G QSFP+ Ethernet Passive Copper Breakout Twinax Cable 1m(3ft) Bulk Wholesale | HYTOPTODEVICE

For detailed technical specifications, please refer to the Datasheet

Usage Guidelines & Best Practices

• Mandatory Port Breakout Configuration: Ensure the host QSFP+ port supports channelization. Enable breakout mode (4x10G) via the switch CLI before connecting the cable.

• Cabling Requirements: Do not exceed the minimum 21mm bend radius, avoid sharp folding, heavy extrusion or long-term tension on the cable assembly.

• Port Installation Standard: Do not mix this breakout DAC with straight QSFP+ to QSFP+ DAC configuration.

• Hot‑swap rule:Never pull or tug directly on the individual breakout legs. Always use the integrated pull-tab or bale latch when inserting or removing connectors.

• Testing & Storage: Run sample validation on target hardware before large bulk deployment; store spare cables in dry, dust‑free and anti‑static packaging.

For detailed operation instructions, please refer to the User Guide.

Full Compatibility List & Supported Devices

1. Validated NVIDIA/Mellanox Hardware & Firmware

• NVIDIA ConnectX-3, ConnectX-4 QSFP+ Ethernet adapters
• Mellanox SX1012, SX1024 40G Ethernet switches
• NVIDIA RoCE v1 / RoCE v2 Ethernet NICs for low-latency compute clusters

2. Multi-Brand Cross Interoperability

Built on universal MSA open standards, this 40G QSFP+ DAC breakout cable can interoperate with mainstream network brands including Arista, Intel, Juniper, Dell, NVIDIA Mellanox and IBM, for mixed-vendor rack stacking and server fabric expansion.

3. Free Value-Added Services

• NVIDIA ConnectX 40G Ethernet NIC port breakout into four 10G VM or storage Ethernet uplinks
• Short intra-rack Ethernet cabling for HPC, AI training and RDMA compute clusters
• Direct replacement for original NVIDIA Mellanox MC2609130-001 40G Ethernet passive copper breakout twinax cable
• Proxmox, VMware ESXi hyper-converged node Ethernet fan-out wiring
• 10G iSCSI / RoCE Ethernet storage fabric links connected to Mellanox server adapters
• Stock replenishment purchase for IT distributors and NVIDIA HPC Ethernet solution partners

The Core Feature

1. Near-Zero Power Draw, Cooler Dense Racks

This passive 40G QSFP+ DAC breakout cable draws only around 0.5 W — a tiny fraction of active copper and AOC alternatives — minimizing heat output and fan load in dense racks, while splitting one 40G QSFP+ port into four independent 10G SFP+ links with minimal latency for short-reach connections within a rack or between adjacent racks.

2.Switch-Validated Before Shipment

3. 100% Individually Tested for Peak Performance

Every single unit is tested individually — no sampling, no shortcuts — to ensure optical compliance and continuous operational stability. Curious how we do it? Take a virtual tour of our Test Center.

FA

Q1: What MLNX_OFED driver branches work best for this passive copper breakout twinax cable on ConnectX Ethernet adapters? A: It runs steadily on MLNX_OFED 5.x stable Ethernet driver releases. HYTOPTODEVICE validates each batch for Mellanox Ethernet hardware to lower deployment risk for NVIDIA Ethernet partners placing stock orders.

Q2: Can this passive copper breakout twinax cable operate on dual-port ConnectX-4 Lx adapters that only support 25G speeds? A: ConnectX-4 Lx is built for 25G and lacks native 40G Ethernet breakout support. Confirm NIC port speed and specs before purchasing this 40G Ethernet splitter cable.

Q3: Does the MLNX_OFED Ethernet stack automatically detect this pre-flashed passive copper breakout twinax cable during server boot? A: Yes, valid EEPROM signature triggers automatic Ethernet port recognition. This simplifies bulk server provisioning for system integrators building RoCE Ethernet fabrics.

Q4: Can HYTOPTODEVICE customize EEPROM data of this passive copper breakout twinax cable for mixed NVIDIA and SONiC Ethernet fabrics? A: Yes, HYTOPTODEVICE offers custom EEPROM flashing for bulk orders. This helps integrators standardize Ethernet cabling specs across multi-vendor data center networks.

Q5: Will Linux Ethernet stack log repeated transceiver alerts when this passive copper breakout twinax cable runs alongside Mellanox SFP+ optical transceivers? A: No, DAC copper cable and optical modules work on separate logical Ethernet ports. Correct breakout mapping prevents continuous warning logs on the host.

Q6: Is this passive copper breakout twinax cable suitable for low-latency RoCE v2 Ethernet storage workloads? A: Yes, passive twinax adds negligible latency for RDMA over Ethernet. Many NVIDIA resellers source this cable to scale affordable 10G RoCE Ethernet ports for compute nodes.

Q7: Will breakout Ethernet subinterface settings persist after MLNX_OFED driver upgrade on Linux HPC hosts? A: Ethernet breakout configurations save to host network files. Major OFED upgrades still require quick verification for stocked passive copper breakout twinax cable inventory.

Q8: What shipping timeline applies for bulk procurement of this passive copper breakout twinax cable for global Ethernet distributors? A: Ready stock orders ship out within 3–5 working days. HYTOPTODEVICE maintains inventory and supports expedited delivery for urgent AI and HPC Ethernet cluster projects.

Q9: Can this passive copper breakout twinax cable carry PFC lossless Ethernet traffic for iSCSI backend storage networks? A: Yes, passive copper does not block priority flow control frames. It works reliably for buyers building lossless Ethernet storage fabrics with Mellanox adapters.

Q10: What troubleshooting step should I take first if one SFP+ Ethernet breakout lane fails on a ConnectX-4 adapter? A: First verify the MLNX_OFED Ethernet breakout profile and reseat the SFP+ connector. Dead lanes are most often caused by missing breakout config or loose insertion.

Q11: What warehouse humidity range should distributors maintain for long-term storage of this passive copper breakout twinax cable? A: Store inventory in 10–60% RH dry indoor conditions. The high-grade twinax copper used by HYTOPTODEVICE resists oxidation and preserves Ethernet signal integrity.

Q12: Do I need a paid license to activate 40G-to-4x10G Ethernet breakout on Mellanox SX1012 Ethernet switches? A: Breakout is a native base function for supported SX1012 QSFP+ Ethernet ports with no extra license. Always check the official switch datasheet before ordering.

Q13: Can the four SFP+ tails of this passive copper breakout twinax cable plug into standard 10G top-of-rack Ethernet switch ports? A: Yes, the SFP+ branches interoperate seamlessly with mainstream 10G leaf Ethernet switches. It delivers cost-effective Ethernet links between NVIDIA NICs and rack switches.

Q14: What compliance and test documentation can HYTOPTODEVICE supply for tender projects requiring this passive copper breakout twinax cable? A: We can provide batch TDR test reports, RoHS and REACH certificates. These files help wholesalers pass audit checks during HPC Ethernet cluster bidding.

Q15: Can the EEPROM firmware on this passive copper breakout twinax cable be rewritten after migrating away from Mellanox Ethernet adapters? A: Yes, HYTOPTODEVICE provides EEPROM reprogramming service. This lets resellers repurpose stocked Ethernet breakout cables on other vendor switches and lift inventory turnover.