CPAK vs QSFP28 | Difference between CPAK and QSFP28

This page compares CPAK vs QSFP28 and mentions difference between CPAK and QSFP28.

CPAK transceiver

The figure-1 depicts CPAK transceiver.


The figure-2 depicts dimension of QSFP28.

Specifications CPAK QSFP28
Line rate 40/100 G 4 x 25 - 28G
Applications Ethernet, SONET/SDH, OTN InfiniBand, Ethernet
Hot pluggable YES YES
Dimensions (W x L x H, mm) 8 x 101.2 x 11 18 x 52 x 8.5
Electrical interface CAUI-4, CAUI CPPI-4
Max. power Not Defined 3.5 W

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RF and Wireless Terminologies