200G PAM4 QSFP56 to QSFP56 Direct Attach Copper Cable (DAC), Passive, up to 3 m (10 ft)

Overview

The NSComm 200G PAM4 QSFP56 to QSFP56 Direct Attach Copper Cable (DAC) is a high-performance, short-reach interconnect designed for 200 Gigabit Ethernet applications in hyperscale data centers and HPC clusters.

Built with twinax copper cable and factory-terminated QSFP56 connectors, it delivers 200 Gbps bandwidth across 4×50 Gbps PAM4 lanes, offering ultra-low latency and cost-effective performance.

The passive DAC supports lengths up to 3 m (10 ft) with virtually zero power consumption. For deployments requiring longer reach, active DAC options extend distances up to 5 m (16 ft) while consuming less than 2 W. This makes it an ideal choice for top-of-rack (ToR) and middle-of-row (MoR) connectivity where cost and efficiency are critical.

Compatible Brands

The NSComm 200G QSFP56 DAC is interoperability-tested with devices from Cisco, Huawei, Juniper, Arista, Dell and Nvidia.

Need device-specific compatibility support? [Contact Us Now] and our engineers will confirm for you.

Key Specifications

Specification	Details
Vendor Name	NSComm
Product Type	200G PAM4 QSFP56 to QSFP56 Direct Attach Copper Cable (DAC)
Data Rate	200 Gbps (4×50 Gbps PAM4 lanes)
Cable Type	Twinax Copper, Passive/Active
Max Cable Distance	Passive: up to 3 m (10 ft); Active: up to 5 m (16 ft)
Conductor AWG Options	30 AWG (≤ 2 m), 26 AWG (≤ 3 m), 24 AWG (active ≤ 5 m)
Connector Type	QSFP56 to QSFP56
Power Consumption	Passive ≈ 0 W, Active ≤ 2 W
Temperature Range	0 °C to 70 °C
Standards Compliance	QSFP56 MSA (SFF-8665), IEEE 802.3cd, RoHS
Applications	200G switch-to-switch, server uplinks, leaf-spine aggregation

Why Choose NSComm 200G QSFP56 DAC?

High-bandwidth breakout: 200 Gbps PAM4 lanes.
Ultra-low latency: Direct copper path with no optical conversion.
Energy efficient: Passive consumes virtually no power; active ≤ 2 W.
Cost-optimized: More economical than optical AOCs or modules.
Wide compatibility: Interoperable with all leading network equipment vendors.

Length Options

Standard stocked lengths:
1 m (3 ft), 2 m (7 ft), 3 m (10 ft)

Extended (active) lengths:
5 m (16 ft)

More Details

Quality Certifications

Do you have any question about the NSComm 200G PAM4 QSFP56 to QSFP56 Direct Attach Copper Cable?

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Warranty

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Item conditions are "New Sealed". They are fully tested by Certified CCIE / HCIE / RCNP Engineers.

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Standard Warranty Policy

Original New Sealed Enterprise Hardware: 3 Years
Original New Sealed Consumer Devices: 1 Year

The Support Contacts

If your NSComm products failed, you must contact your sales representative to verify product failure. If the problem still can't correct by remote support methods i.e. email or phone support, the RMA procedure will issue.

200G QSFP56 DAC Cables