<s>
SMB	O
(	O
SubMiniature	O
version	O
B	O
)	O
connectors	O
are	O
coaxial	O
RF	B-Protocol
connectors	I-Protocol
developed	O
in	O
the	O
1960s	O
.	O
</s>
<s>
SMB	B-Protocol
connectors	I-Protocol
are	O
smaller	O
than	O
SMA	B-Protocol
connectors	I-Protocol
.	O
</s>
<s>
The	O
SSMB	O
connector	O
is	O
a	O
small	O
version	O
of	O
the	O
standard	O
SMB	B-Protocol
connector	I-Protocol
with	O
a	O
'	O
snap-on	O
'	O
coupling	O
.	O
</s>
