Cisco QSFP-4SFP10G-CU50CM Compatible 40G QSFP+ to (x4) 10G SFP+ Passive Direct Attach Copper Breakout Cable - 50 Centimeters in Total Length

This is a high-quality Cisco Compatible 40G QSFP+ to 4 SFP+ Passive DAC (Direct Attach Cable) Copper 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 are suitable for very short distances and offer a way to establish a 40-Gigabit link between QSFP+ ports of 4 SFP+ switches within racks and across adjacent racks. QSFP+ to 4x SFP+ copper DAC cable is a 40GBase QSFP+ hybrid passive cable. One side is a QSFP+ connector,  the other side is 4x SFP+ connectors. Each DAC is 100% optically inspected and tested for compatability 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 brought in several lengths for short distances. These cables consist of fixed lengths of shielded copper coaxial or fiber optic cable with single pluggable transceivers at either end, that have varying gauge values between 24AWG and 30AWG. The 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.

Cisco DAC 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

Cisco DAC 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