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Data Center

Cisco 40G QSFP+ to QSFP+ DAC/AOC Cables Connectivity Solutions

Cisco 40G QSFP+ to QSFP+ DAC/AOC Cables Connectivity Solutions

FS Official 2018-04-30

40G QSFP+ DAC/AOC cable is a high speed twinax or optical cable with QSFP+ connector on both end. It meets the demands for a short distance cabling interconnect system in 40GbE applications. The QSFP+ to QSFP+ DAC/AOC cables offer a highly cost-effective way to establish a 40G link between QSFP+ ports of 40G switches within racks and across adjacent racks. To help you select the most suitable device for your networking, here provides some recommendations for different connections.

Recommendation 1: Cisco 40G QSFP+ to QSFP+ DAC Direct Connection

The below picture shows a simple and economic solution for you, just connecting Cisco Nexus 9372PX and FS.COM S5850-48S6Q switches directly. It is an ideal short distance connection solution by using Cisco 40G QSFP+ to QSFP+ passive DAC cable.

Item No. ID# Description
1 30884 1m (3ft) Cisco QSFP-H40G-CU1M Compatible 40G QSFP+ Passive DAC Cable
2 29123 S5850-48S6Q (48*10GE+6*40GE) High Performance Data Center Switch

Recommendation 2: Cisco 40G QSFP+ to QSFP+ AOC Direct Connection

In a similar way, Cisco 40G QSFP+ AOC cable can also be used to connect Cisco Nexus 9732PX and FS.COM S5850-48S6Q switches directly. This connection performs better over longer distance than DAC cable. The below shows the excellent solution.

Item No. ID# Description
1 30911 3m (10ft) Cisco QSFP-H40G-AOC3M Compatible 40G QSFP+ AOC Cable
2 29123 S5850-48S6Q (48*10GE+6*40GE) High Performance Data Center Switch
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