Identity & Definition
This enterprise passive copper DAC cable, the NVIDIA Mellanox MC2206130-0A3, is a 3.5-meter passive direct attach copper cable with QSFP connectors supporting 40Gb/s for QDR InfiniBand or 40GbE Ethernet. This is a passive cable — no external power required, minimal latency added. The 30AWG conductor gauge provides flexibility for dense rack routing. Condition: Refurbished — tested by T.E.S IT-SOLUTIONS.
Engineering Context
The MC2206130-0A3 uses the original QSFP form factor (4X QDR) for 40Gb/s connectivity via 4x 10Gb/s lanes. At 3.5 meters with 30AWG conductors, this cable is near the practical maximum for passive copper at 40Gb/s. The thinner 30AWG gauge provides better bend radius and easier routing compared to 24AWG or 26AWG cables, but with reduced maximum reach. No transceivers are needed — QSFP connectors are integrated into the cable assembly.
Deployment & Use Cases
QDR InfiniBand server-to-switch connections within a rack or between adjacent racks. 40GbE Ethernet switch-to-switch or server-to-switch links in leaf-spine fabrics. Storage networking connections at 40Gb/s using iSER or SRP over InfiniBand. Cost-effective alternative to QSFP transceivers with fiber for short distances.
Technical Specifications
OEM: NVIDIA Mellanox
Part Number: MC2206130-0A3
Type: Passive DAC Cable
Data Rate: 40Gb/s (4x 10Gb/s)
Protocol: QDR InfiniBand / 40GbE Ethernet (dual-protocol)
Connectors: QSFP to QSFP
Length: 3.5 meters
Conductor Gauge: 30AWG
Power: 0W (Passive)
Condition: Refurbished
Compatibility & Hard Constraints
QSFP Ports Only: Both ends are original QSFP (not QSFP+, QSFP28, or QSFP56). Compatible with QDR InfiniBand and 40GbE QSFP ports. Passive Copper: 3.5m at 30AWG is near the passive limit for 40Gb/s. For longer distances, active optical cables or transceivers with fiber required. Dual Protocol: Supports both QDR InfiniBand and 40GbE Ethernet — protocol determined by connected devices. 30AWG: Thinner and more flexible than 24/26AWG, but shorter maximum reach. Predecessor: MC2206128 series (shorter lengths). Successor: MCP1600 series (100GbE DACs).
Why Choose T.E.S IT-SOLUTIONS
T.E.S IT-SOLUTIONS tests every cable for signal integrity and connector condition before shipment. Technical consultation available for cable length and gauge selection. Global shipping with tracking. 1–3 business day handling.