400G DAC Cable OSFP to OSFP Passive Twinax Cable

SVNK 400G OSFP Passive Direct Attach Copper (DAC) Cable

The SVNK 400G OSFP DAC cable is a high-performance, short-reach copper interconnect solution engineered to support 400 Gigabit Ethernet links in next-generation data center and high-performance computing environments. Designed as a cost-effective alternative to optical interconnects, this passive DAC enables ultra-high-bandwidth connectivity between OSFP-400G ports on switches, routers, and servers within racks and across adjacent racks.

The cable assembly incorporates 16 high-speed differential copper pairs, supporting 8 × 53.125 Gb/s PAM4 channels, to deliver an aggregate throughput of up to 425 Gb/s. With no active electronics, the passive architecture ensures zero additional power consumption, ultra-low latency, minimal insertion loss, and excellent signal integrity, making it ideal for dense 400G deployments.

SVNK 400G OSFP DAC cables are optimized for short-distance copper links up to 3 meters, enabling higher port density, simplified cabling, and reduced total cost of ownership (TCO) in modern data centers.

Fully compliant with OSFP MSA, CMIS, and IEEE 802.3 standards, these cables provide seamless interoperability with leading 400G platforms.

Key Features

• Hot-pluggable OSFP passive DAC cable assemblies
• Supports 400G Ethernet data rates up to 425 Gb/s
• 8 × 53.125 Gb/s PAM4 channels
• 16 high-speed differential copper pairs
• Copper link length up to 3 m
• Zero power consumption (passive design)
• Ultra-low latency
• Excellent signal integrity, low insertion loss, and low crosstalk
• Bit Error Rate (BER) better than 1E-15
• Operating case temperature: 0°C to 70°C
• Single 3.3 V supply voltage
• OSFP MSA, CMIS, IEEE 802.3 compliant
• RoHS compliant (lead-free)
• Minimum bend radius: 33.5 mm