
NSComm 400G PAM4 QSFP-DD to 4x100G QSFP56 Direct Attach PVC Copper Cable, up to 3m
400G PAM4 QSFP-DD to 4×100G QSFP56 Direct Attach Copper Cable (DAC), PVC, Passive, up to 3 m (10 ft)
Overview
The NSComm 400G PAM4 QSFP-DD to 4×100G QSFP56 Direct Attach Copper Cable (DAC) is a breakout copper interconnect purpose-built for 400G-to-4×100G Ethernet applications in hyperscale data centers, HPC clusters, and enterprise networks.
With one QSFP-DD connector on one end and four QSFP56 connectors on the other, it enables seamless 400G-to-100G breakout connectivity with ultra-low latency and cost efficiency.
Manufactured with twinax copper conductors and a protective PVC jacket, the DAC ensures excellent EMI immunity, durability, and stability. The passive version supports lengths up to 3 m (10 ft) with negligible power draw, while active variants can extend up to 5 m (16 ft) with ≤ 4 W per end.
Compatible Brands
The NSComm 400G QSFP-DD to 4×100G QSFP56 DAC works seamlessly with devices from Cisco, Huawei, Juniper, Arista, Dell and Nvidia.
Need confirmation for a specific model? [Contact Us Now] and our team will assist.
Key Specifications
| Specification | Details |
|---|---|
| Vendor Name | NSComm |
| Product Type | 400G PAM4 QSFP-DD to 4×100G QSFP56 Direct Attach Copper Cable (DAC) |
| Data Rate | 400 Gbps total, breakout into 4×100 Gbps channels (PAM4) |
| Cable Type | Twinax Copper, PVC Jacket, 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 | 1× QSFP-DD to 4× QSFP56 |
| Power Consumption | Passive ≈ 0 W, Active ≤ 4 W |
| Temperature Range | 0 °C to 70 °C |
| Standards Compliance | QSFP-DD MSA (SFF-8679), QSFP56 MSA (SFF-8665), IEEE 802.3cd/802.3bs, RoHS |
| Applications | 400G-to-100G breakout, switch uplinks, leaf-spine aggregation |
Why Choose NSComm 400G QSFP-DD to 4×100G DAC?
-
Breakout design: Converts one 400G port into four 100G channels.
-
Cost savings: Eliminates the expense of optics and patch cords.
-
Ultra-low latency: Direct copper transmission path.
-
Energy efficient: Passive requires no power; active ≤ 4 W.
-
Multi-vendor interoperability: Tested with all leading network brands.
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










Warranty
100% Low Price Guarantee
Network-switch.com provides high-quality products at low wholesale prices
100% Quality Assurance
All items are ORIGINAL and GENUINE only.
Item conditions are "New Sealed". They are fully tested by Certified CCIE / HCIE / RCNP Engineers.
Free Technical Support
Our FREE Expert Consultancy Support is over the phone, by chat, by email or by login remotely.
100% Money Back Guarantee
You can contact our customer service team to exchange or return any product that you bought from us.
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.
Original: $135.00
-70%$135.00
$40.50More Images




NSComm 400G PAM4 QSFP-DD to 4x100G QSFP56 Direct Attach PVC Copper Cable, up to 3m
400G PAM4 QSFP-DD to 4×100G QSFP56 Direct Attach Copper Cable (DAC), PVC, Passive, up to 3 m (10 ft)
Overview
The NSComm 400G PAM4 QSFP-DD to 4×100G QSFP56 Direct Attach Copper Cable (DAC) is a breakout copper interconnect purpose-built for 400G-to-4×100G Ethernet applications in hyperscale data centers, HPC clusters, and enterprise networks.
With one QSFP-DD connector on one end and four QSFP56 connectors on the other, it enables seamless 400G-to-100G breakout connectivity with ultra-low latency and cost efficiency.
Manufactured with twinax copper conductors and a protective PVC jacket, the DAC ensures excellent EMI immunity, durability, and stability. The passive version supports lengths up to 3 m (10 ft) with negligible power draw, while active variants can extend up to 5 m (16 ft) with ≤ 4 W per end.
Compatible Brands
The NSComm 400G QSFP-DD to 4×100G QSFP56 DAC works seamlessly with devices from Cisco, Huawei, Juniper, Arista, Dell and Nvidia.
Need confirmation for a specific model? [Contact Us Now] and our team will assist.
Key Specifications
| Specification | Details |
|---|---|
| Vendor Name | NSComm |
| Product Type | 400G PAM4 QSFP-DD to 4×100G QSFP56 Direct Attach Copper Cable (DAC) |
| Data Rate | 400 Gbps total, breakout into 4×100 Gbps channels (PAM4) |
| Cable Type | Twinax Copper, PVC Jacket, 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 | 1× QSFP-DD to 4× QSFP56 |
| Power Consumption | Passive ≈ 0 W, Active ≤ 4 W |
| Temperature Range | 0 °C to 70 °C |
| Standards Compliance | QSFP-DD MSA (SFF-8679), QSFP56 MSA (SFF-8665), IEEE 802.3cd/802.3bs, RoHS |
| Applications | 400G-to-100G breakout, switch uplinks, leaf-spine aggregation |
Why Choose NSComm 400G QSFP-DD to 4×100G DAC?
-
Breakout design: Converts one 400G port into four 100G channels.
-
Cost savings: Eliminates the expense of optics and patch cords.
-
Ultra-low latency: Direct copper transmission path.
-
Energy efficient: Passive requires no power; active ≤ 4 W.
-
Multi-vendor interoperability: Tested with all leading network brands.
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










Warranty
100% Low Price Guarantee
Network-switch.com provides high-quality products at low wholesale prices
100% Quality Assurance
All items are ORIGINAL and GENUINE only.
Item conditions are "New Sealed". They are fully tested by Certified CCIE / HCIE / RCNP Engineers.
Free Technical Support
Our FREE Expert Consultancy Support is over the phone, by chat, by email or by login remotely.
100% Money Back Guarantee
You can contact our customer service team to exchange or return any product that you bought from us.
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.
Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
400G PAM4 QSFP-DD to 4×100G QSFP56 Direct Attach Copper Cable (DAC), PVC, Passive, up to 3 m (10 ft)
Overview
The NSComm 400G PAM4 QSFP-DD to 4×100G QSFP56 Direct Attach Copper Cable (DAC) is a breakout copper interconnect purpose-built for 400G-to-4×100G Ethernet applications in hyperscale data centers, HPC clusters, and enterprise networks.
With one QSFP-DD connector on one end and four QSFP56 connectors on the other, it enables seamless 400G-to-100G breakout connectivity with ultra-low latency and cost efficiency.
Manufactured with twinax copper conductors and a protective PVC jacket, the DAC ensures excellent EMI immunity, durability, and stability. The passive version supports lengths up to 3 m (10 ft) with negligible power draw, while active variants can extend up to 5 m (16 ft) with ≤ 4 W per end.
Compatible Brands
The NSComm 400G QSFP-DD to 4×100G QSFP56 DAC works seamlessly with devices from Cisco, Huawei, Juniper, Arista, Dell and Nvidia.
Need confirmation for a specific model? [Contact Us Now] and our team will assist.
Key Specifications
| Specification | Details |
|---|---|
| Vendor Name | NSComm |
| Product Type | 400G PAM4 QSFP-DD to 4×100G QSFP56 Direct Attach Copper Cable (DAC) |
| Data Rate | 400 Gbps total, breakout into 4×100 Gbps channels (PAM4) |
| Cable Type | Twinax Copper, PVC Jacket, 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 | 1× QSFP-DD to 4× QSFP56 |
| Power Consumption | Passive ≈ 0 W, Active ≤ 4 W |
| Temperature Range | 0 °C to 70 °C |
| Standards Compliance | QSFP-DD MSA (SFF-8679), QSFP56 MSA (SFF-8665), IEEE 802.3cd/802.3bs, RoHS |
| Applications | 400G-to-100G breakout, switch uplinks, leaf-spine aggregation |
Why Choose NSComm 400G QSFP-DD to 4×100G DAC?
-
Breakout design: Converts one 400G port into four 100G channels.
-
Cost savings: Eliminates the expense of optics and patch cords.
-
Ultra-low latency: Direct copper transmission path.
-
Energy efficient: Passive requires no power; active ≤ 4 W.
-
Multi-vendor interoperability: Tested with all leading network brands.
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










Warranty
100% Low Price Guarantee
Network-switch.com provides high-quality products at low wholesale prices
100% Quality Assurance
All items are ORIGINAL and GENUINE only.
Item conditions are "New Sealed". They are fully tested by Certified CCIE / HCIE / RCNP Engineers.
Free Technical Support
Our FREE Expert Consultancy Support is over the phone, by chat, by email or by login remotely.
100% Money Back Guarantee
You can contact our customer service team to exchange or return any product that you bought from us.
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.





