Terminology » Fiber Optic » CPAK vs QSFP28: Understanding the Key Differences

CPAK vs QSFP28: Understanding the Key Differences

cpak qsfp28 fiber optic transceiver optical component

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

CPAK transceiver

Figure 1 depicts the CPAK transceiver.

QSFP28

Figure 2 depicts the 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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