Arista Networks CAB-Q-Q-3M Compatible 40G QSFP+ Passive Direct Attach Copper Cable - 3 Meters in Total Length

This is a high-quality Arista Networks Compatible 40G QSFP+ passive DAC (direct attach cable). It is a cost-effective solution that provides high bandwidth and transmission rates over short distances. QSFP+ (quad small form-factor pluggable plus) cable assemblies offer a way to establish a 40 Gigabit link between QSFP+ ports of QSFP+ switches within racks and across adjacent racks. QSFP+ cables are used for 40 Gigabit ethernet and Infiniband standards. Each direct attach cable is 100% optically inspected and tested for compatibility before shipping.

A direct attach cable, short for DAC cable, is a type of factory terminated Twinax cable that connects directly into transceivers and can be bought in several lengths for short distances. These cables consist of fixed lengths of shielded copper coaxial or fiber optic cable with a single pluggable transceiver at either end, these transceivers have varying gauge values between 24AWG and 30AWG. A DAC cable may be capable of interconnection up to 15 meters using a twinaxial copper cable and reaches 100 meters over an active optical cable at 10Gbps, 40Gbps or higher.

Direct attach cables can be either passive or active. The passive direct attach cable has no electrical components, which results in less power consumption. Active direct attach cables are composed of electrical components, so they use more power, but gain more distance and increase signal strength. Active cables are more expensive and consume more power when in use compared to passive direct attach cables.

Direct Attach Cable Features & Specifications

• Copper Passive
• AWG30
• PVC (OFNR) Jacket
• Easy to Install
• Hot pluggable
• Low insertion loss
• RoHS Compliant
• Temperature Range: 0°C to 70°C
• Available in various lengths

Direct Attach Cable Options Available:

• 10G SFP+ to SFP+ DAC
• 25G SFP28 to SFP28 DAC
• 40G QSFP+ to QSFP+ DAC
• 40G QSFP+ to 4x SFP+ DAC
• 100G QSFP28 to 4x SFP28 DAC
• 100G QSFP28 to QSFP28 DAC
• 56G QSFP+ to QSFP+ DAC