"connectors" - key terms from Wikipedia

audio connectors
banana connectors
bnc connectors
circular connectors
coaxial connectors
connectors
connectors	are used with circuits
connectors	for electronic equipment
dc power connectors
dvi connectors
free and fixed connectors
idc connectors
locking connectors
plug and socket connectors
power connectors
rca connectors
rf connectors
sc connectors
standard connectors
superspeed connectors
these connectors
trs connectors
usb connectors
xlr connectors