A mini-GBIC; see also Transceiver Small Form-factor Pluggable (SFP).

• A. Small Form-factor Pluggable (SFP) Transceiver
• B. GBIC
• C. RJ45 Transceiver
• D. Fiber Transceiver

Answer: (A)

A mini-GBIC is the smaller form factor version of a transceiver used in network devices, and the standard name for that form factor is the Small Form-factor Pluggable (SFP) transceiver. SFP modules are hot-swappable, plug into dedicated SFP slots, and come in various types to handle different media (fiber or copper) and distances. The term mini-GBIC came from the older, larger GBIC standard, but the ecosystem and widespread adoption align with SFP as the correct designation for this small, interchangeable transceiver.

The other options fit broader or different ideas: GBIC refers to the older, larger module that mini-GBICs replaced; an RJ45 transceiver implies a module aimed at copper RJ45 Ethernet without specifying the small form factor; and a fiber transceiver is too generic and doesn’t identify the smaller, standardized SFP form factor.