GBIC
GBIC, short for "gigabit interface converter", is a transceiver that was introduced in 1995. This makes it the oldest transceiver on the market and even though it is still used in old equipment, especially Cisco, it has long ago been replaced by SFP in new equipment.
Product selector/filter
The fields for product selector/filter have now been moved up to the left. Tick the desired criteria to narrow down the selection. In the end, you will be left with the transceiver(s) best suited to your needs.