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40G QSFP+ to 40G QSFP+ Passive Direct Attach Copper Twinax Cable
40G QSFP+ to 40G QSFP+ Passive Direct Attach Copper Twinax Cable

40G QSFP+ to 40G QSFP+ Passive Direct Attach Copper Twinax Cable

Part Number:


Item Spotlights:

Hot-plug Swappable

Optimized NEXT & Return Loss

Low Cost and Low Power Solution Compared to Fiber Optical Cable

Compliant with QSFP+ MSA and SFF-8436

Compliant with IEEE 802.3ba/ Infiniband QDR specifications

Enhanced EMI/EMC Performance

Supports Serial ID Functionality Thru EEPROM

RoHS compliant and Halogen-Free Option Available


The QSFP+ (Quad Small Form-factor Pluggable Plus) passive cable assemblies are high performance, cost effective I/O solutions for 40G LAN, HPC and SAN applications. QSFP+ copper direct-attach cables are suitable for very short distances and offer a highly costeffective way to establish a 40-Gigabit link between QSFP+ ports of QSFP+ switches within racks and across adjacent racks.

The QSFP+ passive copper cables are compliant with SFF-8436, QSFP+ MSA and IEEE 802.3ba 40GBASE-CR4. It is offer a low power consumption, short reach intercon- nect applications. The cable each lane is capable of transmitting data at rates up to 10Gb/s, providing an aggregated rate of 40Gb/s.


1. Switches/Routers/HBAs/SAN,NIC cards

2. Server & Storage Devices

3. Data Center Networking

4. High Performance Compute

5. Fiber Channel

6. InfiniBand QDR/DDR

7. 40Gbs Ethernet


Connector TypeQSFP+ to QSFP+Max Data Rate40Gbps
Minimum Bend Radius23mmWire AWG24 to 30AWG
Cable Length0.5~7mJacket MaterialPVC (OFNR)
Cable TypePassive TwinaxProtocols40G Ethernet
Temperature0 to 70°C (32 to 158°F)CertificationRoHS

Direct Attach Cables for Data Center Interconnection

Direct attach cable assemblies are ideal choices for short-reach direct connection applications. Generally, they are used in the EDA (Equipment Distribution Area) where cabinets and racks house end equipment (servers) and where horizontal cabling from the HDA (Horizontal Distribution Area) are terminated at patch panels, as shown in the following picture:

Direct Attach Cables for Data Center Interconnection

Compatible Brands

Widely compatible with Cisco, Huwei, H3C, ZTC and other SFP optical switches, routers, firewalls, network cards, etc.

400G DAC 100% compatible with 200+ vendors

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