Appendix A: Additional Guidelines and Equipment Details
63
Dell EMC PowerEdge MX
Networking Architecture Guide
Figure 52. QSFP+ to SFP+ Breakout cables: Multi-fiber Push On (MPO) Breakout Cable
Note:
The MPO breakout cables uses a QSFP+ transceiver on one end and four SFP+
transceivers on the terminating end.
The QSFP28 standard is 100Gb that uses either fiber or copper media to achieve
communication in each direction. The QSFP28 transceiver has four individual 25Gb lanes
which can be used together to achieve 100GbE throughput or separately as four individual
25GbE connections (using 4 SFP28 modules). One variant of the Dell QSFP28
transceiver is shown in Figure 53.
Figure 53. QSFP28 transceiver
There are three variations of cables for QSFP28 connections. The variations are shown in
Figures 54 through 56.
Figure 54. QSFP28 cables: Direct Attach Copper (DAC)
QSFP28
