Which type of optics module is supported by a Cisco Nexus 7700 F4-Series 30-Port 100-Gigabit Ethernet Module?

QSFP28 is the transceiver form factor associated with 100G on newer Cisco platforms and different module generations, but it is not the designated optics type for the Nexus 7700 F4-Series 30-Port module.

SFP+ supports a maximum of 10 Gigabit Ethernet and does not have the bandwidth capacity required to support the 100G interfaces on this module.

Cisco CPAK is a 100G optics form factor used on other Nexus 7700 line cards such as the F3-Series 6-Port 100G module, not the F4-Series 30-Port 100G module.

The Cisco Nexus 7700 F4-Series 30-Port 100-Gigabit Ethernet Module supports QSFP+ (Quad Small Form-factor Pluggable Plus) as its designated transceiver form factor, providing the multi-lane interface and port density required for high-speed connectivity within the Nexus 7700 chassis. QSFP+ is explicitly listed in Cisco's hardware documentation as the supported module type for this specific F4-Series line card, distinguishing it from other optics form factors used on different Nexus 7700 modules.