NVIDIA(Mellanox) MCP1600-E00AE30 Compatible QSFP28 to QSFP28 Passive DAC Twinax Cable | 100G InfiniBand EDR, 4×25G NRZ (0.5m, Copper, 30AWG)
Product Overview
HYTOPTODEVICE 0.5m QSFP28 to QSFP28 Passive DAC Twinax Cable serves as pin-to-pin compatible replacement for NVIDIA(Mellanox) MCP1600-E00AE30.
This passive twinax copper cable supports 100G EDR InfiniBand transmission with 4×25G NRZ signaling.
Constructed with 30AWG copper conductors, optimized for ultra-short in-rack interconnections within 0.5 meters.
As a passive DAC assembly, it contains no active chips and consumes zero operating power.
It delivers ultra-low latency and stable signal integrity for HPC and GPU computing workloads.
Pre-flashed matching EEPROM ensures zero-warning plug-and-play operation on NVIDIA InfiniBand hardware.
We support sample testing and bulk wholesale procurement of
100G EDR QSFP28 DAC cable.
Custom EEPROM configuration and OEM labeling services are available for importers, distributors and system integrators worldwide.
Key Technical Specifications
| Cisco Compatible |
QSFP-100G-CU1M |
Vendor Name |
HYTOPTODEVICE |
| Connector |
QSFP28 to QSFP28 |
Max Data Rate |
100Gbps |
| Cable Length |
1m (3.3ft) |
AWG |
AWG 30 |
| Jacket Material |
PVC(OFNR) |
Minimum Bend Radius |
35mm |
| Operation Temperature |
0~ 70 °C (32 to 158°F) |
Protocols |
100 Gigabit Ethernet |
Usage Guidelines & Best Practices
This 0.5m passive QSFP28 DAC cable is purpose-built for ultra-short in-rack connections inside HPC and AI server racks.
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Distance Restriction: This variant is designed strictly for 0.5m links. Do not extend routing beyond the rated length to avoid signal degradation.
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Cable Routing Rules: Maintain minimum bend radius to prevent internal conductor damage and signal loss.
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Passive DAC Advantage: No power draw, ideal for high-density rack deployments without extra power load.
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Environment Suggestion: Avoid tight cable bundling with high-power cables to reduce electromagnetic interference.
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Application Reminder: For links longer than 3 meters, select active copper cables or QSFP28 optical AOC solutions.
Full Compatibility List & Supported Network Hardware
1. Validated NVIDIA Hardware Platforms
Plug-and-play compatible with mainstream EDR InfiniBand equipment:
- EDR InfiniBand Switches: SB7800, SB7890
- Host Channel Adapters: ConnectX-5 VPI
- GPU Compute Servers with QSFP28 HCA ports
2. Multi-Vendor Interoperability
Compliant with QSFP28 MSA standards. It supports cross-vendor interconnection with standard 100G EDR hardware.
3.Value-Added Compatibility Services & Self-Programming Support
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On-Site Recoding Solutions: Gain full control with our optional smart coding boards and software, enabling your team to rewrite EEPROM compatibility codes on demand.
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Free Lifetime Firmware Maintenance: Enjoy complimentary firmware update downloads whenever switch OS versions upgrade or new hardware platforms are released.
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Custom Code Adaptation: Need support for specialized or legacy network systems? Our engineers offer free custom firmware tailoring to guarantee 100% link-up.
Primary Application Scenarios
- In-Rack Server Interconnection: Short 0.5m links between compute nodes and top-of-rack EDR InfiniBand switches inside the same server rack. Ideal for procurement teams building compact HPC clusters.
- Compact Leaf-Spine Fabric: Deploy ultra-short trunk links for high-density leaf-spine topology inside unified rack enclosures.
- GPU Cluster Intra-Rack Networking: Connect DGX servers equipped with ConnectX-5 adapters for parallel computing and simulation workloads.
- High-Speed Storage Networking: Link storage servers with EDR InfiniBand HCAs for low-latency distributed storage systems.
- HPC Test & Measurement Infrastructure: Cost-effective short-range cabling for lab computing and performance verification environments.
Connectivity Solutions(Applications)
Upgrade Solutions
FAQ for 100G QSFP28 Passive DAC Cable
Q1: What transmission standard does the MCP1600-E00AE30 compatible 0.5m QSFP28 DAC cable support
A1: This purchased QSFP28 passive DAC cable supports 100G EDR InfiniBand with 4×25G NRZ signaling, designed for fixed 0.5-meter in-rack interconnections.
Q2: Will purchased 0.5m QSFP28 DAC cable trigger unrecognized cable alarms on NVIDIA SB7800 EDR switches
A2: Our cables are pre-flashed with EEPROM matching MCP1600-E00AE30 specifications. After installation, purchased 100G QSFP28 EDR DAC cable runs zero-alarm without port restriction on validated NVIDIA hardware.
Q3: Does this passive QSFP28 twinax cable consume power during operation
A3: As a passive copper assembly, purchased 100G QSFP28 EDR DAC cable contains no electronic chips and consumes zero power, helping reduce total rack power draw for high-density HPC racks.
Q4: What is the minimum bend radius requirement for bulk deployed 0.5m QSFP28 DAC cables
A4: The cable requires minimum 35.5mm single bend radius and 71mm repeated bend radius. Improper sharp bending will degrade signal quality for purchased 100G QSFP28 EDR DAC cable.
Q5: Can this 0.5m passive DAC cable work reliably for links longer than 0.5 meters
A5: Not recommended. This variant is electrically tuned for 0.5m fixed distance. Exceeding rated length will cause signal attenuation, link instability and packet errors for purchased 100G QSFP28 EDR DAC cable.
Q6: Should procurement teams choose passive DAC or active copper cable for in-rack EDR InfiniBand deployment
A6: Select passive twinax DAC if all links are within 3 meters. For longer rack-to-rack connections over 3m, buyers need to select active copper DAC or optical AOC instead of purchased 100G QSFP28 EDR DAC cable.
Why Network Engineers Choose HYTOPTODEVICE
HYTOPTODEVICE has supplied over 200,000 passive Direct Attach Copper(DAC) cable to data centers and enterprise networks across 100+ countries since 2011. Every passive DAC cable undergoes comprehensive 100% performance, signal integrity, and compatibility testing before shipment。
- 100% MSA-compliant DAC with Cisco, Huawei,Dell,Juniper, and Arista compatibility
- ISO 9001:2015 certified manufacturing facility in Shenzhen
- Average lead time of 3–5 business days with DHL/FedEx express options
- Dedicated pre-sales engineering support for custom configurations
- Actual hardware,actual switches,actual results.we publish compatibility test video,eliminate compatibility anxiety. you can watch before you buy.
- We can provide inspection and shipping videos to make you feel as if you are right here with the product.
"We replaced 100 Cisco-branded DACS with HYTOPTODEVICE equivalents across our spine layer — zero compatibility issues, 40% cost reduction."— Network Architect, Tier-2 ISP, England
Quality Certification & Compliance：
At HYTOPTODEVICE, our quality commitment is backed by industry-standard validations. From passive DAC cable manufacturing to final inspection, our processes ensure global compliance and reliability.
We adhere to rigorous standards for our passive DAC cable and network solutions:
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ISO 9001: Certified quality management and production consistency.
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CE & FCC: Fully compliant for seamless Global Market Access.
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RoHS: Committed to environmental responsibility and hazardous material control.
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Proven Reliability: Rigorous testing to reduce compliance risk and ensure safety.
Certified Quality. Global Standards. Guaranteed Performance.
Rigorous Industrial Product Testing
100% 3rd Party Compatible
Partial Test Demonstration：
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