400G QSFPDD DAC Passive Direct Attach Copper Cable

The BWN-400G-D0.5 is a high-performance 400G QSFP-DD passive direct attach copper cable featuring twin-axial technology that delivers ultra-fast data transmission speeds up to 425Gbps over a compact 0.5-meter length, making it an ideal cost-effective solution for short-range high-bandwidth connections in modern data centers and enterprise networks.

  • Form Factor: QSFP-DD (Quad Small Form-factor Pluggable Double Density)
  • Cable Type: Passive Direct Attach Copper (DAC) Twinax Cable
  • Cable Length: 0.5 meter (D0.5)
  • Data Rate: Up to 425 Gbps
  • Signal Type: PAM4 modulated signal
  • Power Consumption: Low (≤0.1W)
  • Compatibility: Multi-vendor compatible with Cisco, Mikrotik, HPE, TP-LINK, HP, Juniper
  • Compliance: IEEE 802.3bs and QSFP-DD MSA standards
  • Interface: QSFP-DD to QSFP-DD
  • Cable Gauge: Typically 28-30AWG
  • Jacket Type: PVC or LSZH (Low Smoke Zero Halogen)

Experience the next generation of data center connectivity with our premium 400G QSFP-DD passive direct attach copper cable. Engineered for mission-critical environments where every microsecond counts, the BWN-400G-D0.5 delivers exceptional performance in a cost-effective 0.5-meter package, ensuring your infrastructure stays ahead of escalating bandwidth demands.

400G DAC Cables

Part No. Data Rate Protective sleeve material Distance Connector Type
YXF-400G-D0.5 400G PAM4 PVC 0.5m QSFP-DD To QSFP-DD
YXF-400G-D1 PVC 1m
YXF-400G-D1.5 PVC 1.5m
YXF-400G-D2 PVC 2m
YXF-400G-D3 PVC 3m
YXF-400G-2X200G-D0.5 400G to 2x200G PAM4 PVC 0.5m QSFP-DD To 2X200G QSFP56
YXF-400G-2X200G-D1 PVC 1m
YXF-400G-2X200G-D1.5 PVC 1.5m
YXF-400G-2X200G-D2 PVC 2m
YXF-400G-2X200G-D3 PVC 3m
YXF-400G-4X100G-D0.5 400G to 4x100G PAM4 PVC 0.5m QSFP-DD to 4x100G QSFP28
YXF-400G-4X100G-D1 PVC 1m
YXF-400G-4X100G-D1.5 PVC 1.5m
YXF-400G-4X100G-D2 PVC 2m
YXF-400G-4X100G-D3 PVC 3m

Infiniband DAC Cables

Part No. Data Rate Protective sleeve material Distance Connector Type
BWN-200G-D0.5 200G PAM4 PVC 0.5m QSFP56 To QSFP56
BWN-200G-D1 PVC 1m
BWN-200G-D2 PVC 2m
BWN-200G-D3 PVC 3m
BWN-200G-2X100G-D0.5 200G to 2x100G PAM4 PVC 0.5m QSFP56 To 2*100G QSFP28
BWN-200G-2X100G-D1 PVC 1m
BWN-200G-2X100G-D2 PVC 2m
BWN-200G-2X100G-D3 PVC 3m
BWN-200G-4X50G-D0.5 200G to 4x50G PAM4 PVC 0.5m QSFP56 to 4x50G SFP56
BWN-200G-4X50G-D1 PVC 1m
BWN-200G-4X50G-D2 PVC 2m
BWN-200G-4X50G-D3 PVC 3m

Standard DAC Cables

Part No. Data Rate Protective sleeve material Distance Connector Type
BWN-10G-D1 10G PVC 1m SFP+ To SFP+
BWN-10G-D2 PVC 2m
BWN-10G-D3 PVC 3m
BWN-10G-D5 PVC 5m
BWN-10G-D7 PVC 7m
BWN-10G-D10 PVC 10m
BWN-40G-D1 40G PVC 1m QSFP+ To QSFP+
BWN-40G-D2 PVC 2m
BWN-40G-D3 PVC 3m
BWN-Q28-D1 100G PVC 1m QSFP28 To QSFP28
BWN-Q28-D2 PVC 2m
BWN-Q28-D3 PVC 3m
40G-4X10G-D1 40G to 4x10G PVC 1m QSFP+ To 4xSFP+
40G-4X10G-D2 PVC 2m
40G-4X10G-D3 PVC 3m

Key Features

  • Ultra-High Bandwidth Capacity: Supports data transmission rates up to 425 Gbps, providing the throughput needed for data-intensive applications and high-density computing environments.
  • Energy-Efficient Design: Exceptionally low power consumption (≤0.1W) reduces operational costs and heat generation, contributing to greener data center operations.
  • Universal Compatibility: Fully compatible with leading network equipment manufacturers including Cisco, Mikrotik, HPE, TP-LINK, HP, and Juniper, offering plug-and-play deployment without vendor lock-in.
  • Enterprise-Grade Reliability: Compliant with IEEE 802.3bs and QSFP-DD MSA standards, each cable undergoes rigorous testing to ensure consistent performance and signal integrity in demanding environments.
  • Space-Optimized Design: Featuring high-quality 28-30AWG twinax copper construction, the cable maintains flexibility for tight installation spaces while delivering superior signal quality.

Application

  • High-Density Data Centers: Perfect for top-of-rack (ToR) deployments and switch-to-switch connections where space is limited but performance requirements are extreme.
  • High-Performance Computing: Delivers the necessary bandwidth for AI/ML clusters, financial trading platforms, and other latency-sensitive computing environments.
  • Network Upgrades: Provides a cost-effective migration path from 100G/200G to 400G infrastructure, allowing organizations to future-proof their networks without complete infrastructure overhauls.

FAQs

SFP modules convert electrical signals to optical signals (or vice versa), enabling data transmission between networking devices such as switches and routers across various distances and media types.

Our SFP modules are MSA-compliant, ensuring broad compatibility with major equipment manufacturers. Verify compatibility through your device documentation, our online compatibility matrix, or by contacting our technical support team.

Yes, all our modules support hot-swapping. Use an ESD wrist strap during installation, handle modules by their edges, and ensure proper alignment before insertion to prevent damage.

Power consumption typically ranges from 1-2 watts. Operating temperature range is 0°C to 70°C (commercial) or -40°C to 85°C (industrial), with 5-95% non-condensing humidity tolerance.

Our modules come with a 3-year standard warranty covering manufacturing defects and performance issues under normal use. Extended warranty options are available for select products.

Technical documentation is available in our online knowledge base. Support can be accessed via email (support@bwnfibersfp.com), phone, or through our customer support portal.

Model

D0.5, D1, D1.5, D2, D3

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