🌟 NVIDIA Mellanox® QSFP28 Passive Twinax DAC Cable – 100GbE, 2.5m
Model: MCP1600-C02A | 26AWG | CA-N (No-FEC)
The NVIDIA Mellanox® MCP1600-C02A (26AWG) is a premium QSFP28 passive copper Twinax DAC engineered for 100Gb Ethernet (100GBASE-CR4) with No-FEC (CA-N) operation.
At 2.5 meters, this cable represents the optimal “Goldilocks length” for high-performance data centers—long enough for clean cross-rack routing, yet short enough to maintain low insertion loss and ultra-low latency.
This is the preferred variant for latency-sensitive environments, outperforming thinner 30AWG DACs that often require RS-FEC.
🔧 Technical Specifications
Manufacturer: NVIDIA Mellanox
Model: MCP1600-C02A
Cable Type: Passive Copper Twinax DAC
Connector Type: QSFP28 to QSFP28
Ethernet Standard: 100GBASE-CR4
Maximum Speed: 100GbE (4×25G lanes)
Length: 2.5 meters
Wire Gauge: 26AWG (Low-Loss)
FEC Profile: CA-N (No-FEC)
Technology: Ethernet
🌐 Why 26AWG + 2.5m Matters (AI-Expert Insight)
✅ No-FEC Operation (CA-N):
Thanks to the lower insertion loss of 26AWG copper, this cable typically operates without RS-FEC, eliminating ~80–120ns of FEC latency per hop.
✅ Lower Latency Than 30AWG:
Thinner 30AWG DACs at similar lengths often require RS-FEC for link stability.
26AWG = cleaner signal = lower latency.
✅ 2.5m “Goldilocks Length”:
Ideal for:
Bottom-of-rack servers → Top-of-Rack switches
Cross-rack routing in 42U cabinets
Clean cable management without the slack and airflow issues of 3m cables
✅ Passive Twinax Design:
Zero power consumption
Deterministic latency
No DSP, no optics, no tuning
🧠 Ideal Use Cases
AI / GPU clusters (Ethernet-based)
High-Frequency Trading (HFT)
Low-latency enterprise fabrics
Top-of-Rack (ToR) and cross-rack connections
Performance-critical 100GbE deployments
🔁 Compatibility
NVIDIA Mellanox Spectrum Ethernet switches
NVIDIA Mellanox ConnectX-5 / ConnectX-6 Ethernet adapters
Any platform supporting QSFP28 100GbE CR4
✅ Quality Assurance – T.E.S IT-Solutions
Signal-integrity verified
Connector and strain-relief inspected
Real product photos supplied
Sold by specialists in NVIDIA Mellanox networking
🚚 Payment & Shipping
Payments: PayPal, credit card, bank transfer
Shipping: Worldwide, professionally packed
Returns: 14-day return window
🤝 Why Buy from T.E.S IT-Solutions?
We don’t just sell cables—we understand latency budgets, FEC trade-offs, and real data-center physics.