<s>
In	O
computing	O
,	O
a	O
legacy	B-Device
port	I-Device
is	O
a	O
computer	B-Protocol
port	I-Protocol
or	O
connector	B-Protocol
that	O
is	O
considered	O
by	O
some	O
to	O
be	O
fully	O
or	O
partially	O
superseded	O
.	O
</s>
<s>
The	O
replacement	O
ports	O
usually	O
provide	O
most	O
of	O
the	O
functionality	O
of	O
the	O
legacy	B-Device
ports	I-Device
with	O
higher	O
speeds	O
,	O
more	O
compact	O
design	O
,	O
or	O
plug	B-Device
and	I-Device
play	I-Device
and	O
hot	B-Device
swap	I-Device
capabilities	O
for	O
greater	O
ease	O
of	O
use	O
.	O
</s>
<s>
Modern	O
PC	B-Device
motherboards	I-Device
use	O
separate	O
Super	B-Device
I/O	I-Device
controllers	O
to	O
provide	O
legacy	B-Device
ports	I-Device
,	O
since	O
current	O
chipsets	B-Device
do	O
not	O
offer	O
direct	O
support	O
for	O
them	O
.	O
</s>
<s>
A	O
category	O
of	O
computers	O
called	O
legacy-free	B-Protocol
PCs	I-Protocol
omits	O
these	O
ports	O
,	O
typically	O
retaining	O
only	O
USB	B-Protocol
for	O
external	O
expansion	O
.	O
</s>
<s>
USB	B-Protocol
adapters	B-Device
are	O
often	O
used	O
to	O
provide	O
legacy	B-Device
ports	I-Device
if	O
they	O
are	O
required	O
on	O
systems	O
not	O
equipped	O
with	O
them	O
.	O
</s>
