StarTech.com StarTech.com 0.5m QSFP+ to QSFP+ Direct Attach Cable for Juniper EX-QSFP-40GE-DAC-50CM - 40GbE - QSFP+ Copper DAC 40 Gbps

★★★★★ 4.1 35 reviews

$31.99
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Product details

Management number 204007945 Release Date 2025/10/31 List Price $19.19 Model Number 204007945
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The EXQSFP4050CM is a Juniper EX-QSFP-40GE-DAC50CM compatible direct-attach copper QSFP+ cable that's designed, programmed and tested to work with Juniper® brand compatible switches and routers and complies with MSA industry standards.

This passive Twinax copper cable supports 40 Gigabit Ethernet applications connected through QSFP+ (Mini-GBIC) ports. This copper QSFP+ cable is hot-swappable, making upgrades and replacements seamless by minimizing network disruptions.

Designed for high-speed performance, this low-power, low-latency QSFP+ cable is a cost-effective alternative to fiber-optic cable assemblies, supporting short-distance applications such as point-to-point in-rack network switch or server connections.

StarTech.com SFP Cables

All StarTech.com SFP & SFP+ cables are backed by a lifetime warranty and free lifetime multilingual technical support. StarTech.com offers a wide variety of direct-attach SFP cables and SFP modules, providing the convenience and reliability you need to ensure dependable network performance.


  • 100% JUNIPER EX-QSFP-40GE-DAC-50CM COMPATIBLE DAC: 40G direct attach cable works with Juniper switches and is MSA compliant
  • TECHNICAL SPECS: 0.5m (1.6ft)
  • 40 Gbps
  • Passive Twinax (Copper)
  • 2 x QSFP+ Pluggable Connector
  • 100 Ohm Impedance
  • 30 AWG Wire Gauge
  • PVC Cable Jacket
  • Hot swappable
  • MSA Compliant
  • TESTED FOR OEM HOST COMPATIBILITY: Hot-swappable in Juniper routers and switches
  • LIFETIME WARRANTY: Backed by a lifetime warranty on the life of the module itself, not the life of your switch; our modules won't void your OEM warranty and supported by our Tech Advisors 5/24
  • WORKS WITH MSA COMPLIANT SWITCHES: Low power 40GbE DAC also works with switch models from Ubiquiti, D-Link, Netgear, Supermicro, TP-Link and more that accept uncoded modules and transceivers

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