<s>
The	O
Nintendo	B-Device
Entertainment	I-Device
System	I-Device
Game	I-Device
Pak	I-Device
is	O
the	O
software	O
storage	O
medium	O
for	O
the	O
Nintendo	O
Entertainment	O
System	O
.	O
</s>
<s>
All	O
officially	O
licensed	O
NTSC-U	O
and	O
PAL	B-Language
region	I-Language
cartridges	B-Protocol
are	O
13.3cm	O
(	O
5.25inches	O
)	O
tall	O
,	O
12cm	O
(	O
4.75inches	O
)	O
wide	O
and	O
2cm	O
(	O
0.75inches	O
)	O
thick	O
.	O
</s>
<s>
Early	O
NES	B-Device
Game	I-Device
Paks	I-Device
are	O
held	O
together	O
with	O
5	O
small	O
,	O
slotted	O
screws	O
.	O
</s>
<s>
The	O
back	O
of	O
the	O
cartridge	B-Protocol
bears	O
a	O
label	O
with	O
instructions	O
on	O
handling	O
,	O
explaining	O
that	O
the	O
cartridge	B-Protocol
is	O
not	O
to	O
be	O
stored	O
in	O
extreme	O
temperatures	O
,	O
not	O
to	O
be	O
immersed	O
in	O
water	O
,	O
and	O
not	O
to	O
be	O
cleaned	O
with	O
benzene	O
,	O
thinner	O
,	O
alcohol	O
,	O
or	O
other	O
such	O
solvents	O
.	O
</s>
<s>
With	O
the	O
exception	O
of	O
The	B-Application
Legend	I-Application
of	I-Application
Zelda	I-Application
and	O
Zelda	B-Application
II	I-Application
:	I-Application
The	I-Application
Adventure	I-Application
of	I-Application
Link	I-Application
,	O
which	O
are	O
available	O
as	O
gold	O
plastic	O
Game	B-Device
Paks	I-Device
,	O
all	O
licensed	O
NTSC	O
and	O
PAL	B-Language
cartridges	B-Protocol
are	O
a	O
standard	O
shade	O
of	O
gray	O
plastic	O
.	O
</s>
<s>
Unlicensed	O
cartridges	B-Protocol
were	O
produced	O
in	O
black	O
(	O
Tengen	O
,	O
American	O
Video	O
Entertainment	O
,	O
and	O
Wisdom	O
Tree	O
)	O
,	O
robin	O
egg	O
blue	O
(	O
Color	O
Dreams	O
and	O
Wisdom	O
Tree	O
)	O
,	O
silver	O
and	O
gold	O
(	O
Camerica	O
)	O
,	O
gray	O
(	O
American	O
Game	B-Protocol
Cartridges	I-Protocol
)	O
,	O
white	O
(	O
Caltron	O
)	O
,	O
and	O
clear	O
(	O
Active	O
Enterprises	O
)	O
which	O
bear	O
a	O
slightly	O
different	O
shape	O
and	O
style	O
than	O
a	O
vintage	O
Nintendo-licensed	O
NES	B-Device
Game	I-Device
Pak	I-Device
.	O
</s>
<s>
The	O
largest	O
officially	O
licensed	O
Game	B-Device
Pak	I-Device
size	O
is	O
768KB	O
for	O
Kirby	B-Application
's	I-Application
Adventure	I-Application
.	O
</s>
<s>
Famicom	O
cartridges	B-Protocol
are	O
shaped	O
slightly	O
differently	O
,	O
measuring	O
only	O
6.9cm	O
(	O
2.75inches	O
)	O
in	O
length	O
,	O
10.8cm	O
(	O
4.25inches	O
)	O
in	O
width	O
,	O
and	O
1.7cm	O
(	O
0.6875inches	O
)	O
in	O
thickness	O
.	O
</s>
<s>
Unlike	O
the	O
predominantly	O
gray	O
colored	O
NES	B-Device
Game	I-Device
Paks	I-Device
,	O
official	O
Famicom	O
cartridges	B-Protocol
were	O
produced	O
in	O
many	O
colors	O
of	O
plastic	O
.	O
</s>
<s>
Adaptors	O
,	O
similar	O
in	O
design	O
to	O
the	O
popular	O
accessory	O
Game	B-Device
Genie	I-Device
,	O
are	O
available	O
that	O
allow	O
Famicom	O
games	O
to	O
be	O
played	O
on	O
an	O
NES	O
.	O
</s>
<s>
The	O
Famicom	O
,	O
the	O
Japanese	O
version	O
of	O
the	O
NES	O
,	O
has	O
a	O
60-pin	O
cartridge	B-Protocol
design	O
.	O
</s>
<s>
This	O
yields	O
smaller	O
cartridges	B-Protocol
than	O
the	O
NES	O
,	O
which	O
has	O
a	O
72-pin	O
design	O
.	O
</s>
<s>
Ten	O
pins	O
were	O
added	O
that	O
connect	O
a	O
cartridge	B-Protocol
directly	O
to	O
the	O
expansion	O
port	O
on	O
the	O
bottom	O
of	O
the	O
unit	O
.	O
</s>
<s>
Finally	O
,	O
two	O
pins	O
that	O
allow	O
cartridges	B-Protocol
to	O
provide	O
their	O
own	O
sound	O
expansion	O
chips	O
were	O
removed	O
.	O
</s>
<s>
Some	O
early	O
NES	O
cartridges	B-Protocol
house	O
the	O
same	O
printed	O
circuit	O
boards	O
as	O
their	O
Famicom	O
counterparts	O
,	O
using	O
a	O
converter	O
(	O
such	O
as	O
the	O
T89	O
Cartridge	B-Protocol
Converter	O
)	O
to	O
allow	O
them	O
to	O
fit	O
inside	O
the	O
internally	O
compatible	O
NES	O
hardware	O
.	O
</s>
<s>
The	O
cartridge	B-Protocol
dimensions	O
of	O
the	O
original	O
Famicom	O
measure	O
at	O
10.8	O
×	O
6.9	O
×	O
1.7cm	O
,	O
compared	O
with	O
12×	O
13.3	O
×2cm	O
for	O
its	O
North	O
American	O
redesign	O
.	O
</s>
<s>
The	O
Famicom	O
has	O
two	O
cartridge	B-Protocol
pins	O
that	O
were	O
originally	O
intended	O
to	O
facilitate	O
the	O
Disk	B-Device
System	I-Device
's	O
own	O
sound	O
chip	O
,	O
but	O
are	O
also	O
used	O
by	O
cartridge	B-Protocol
games	O
to	O
provide	O
sound	O
enhancements	O
.	O
</s>
<s>
In	O
the	O
design	O
of	O
the	O
NES	O
,	O
these	O
pins	O
were	O
removed	O
from	O
the	O
cartridge	B-Protocol
port	O
and	O
relocated	O
to	O
the	O
bottom	O
expansion	O
port	O
.	O
</s>
<s>
As	O
a	O
result	O
,	O
individual	O
cartridges	B-Protocol
can	O
not	O
make	O
use	O
of	O
this	O
audio	O
functionality	O
,	O
and	O
many	O
NES	O
localizations	B-General_Concept
have	O
technologically	O
inferior	O
sound	O
compared	O
to	O
their	O
equivalent	O
Famicom	O
versions	O
,	O
such	O
as	O
Castlevania	B-Application
III	I-Application
:	I-Application
Dracula	I-Application
's	I-Application
Curse	I-Application
.	O
</s>
<s>
In	O
Japan	O
,	O
Konami	O
,	O
Namco	O
,	O
Bandai	O
,	O
Taito	O
,	O
Irem	O
,	O
Jaleco	O
,	O
and	O
Sunsoft	O
manufactured	O
their	O
own	O
game	B-Protocol
cartridges	I-Protocol
for	O
the	O
Famicom	O
.	O
</s>
<s>
Internationally	O
,	O
all	O
licensed	O
NES	O
cartridges	B-Protocol
were	O
made	O
by	O
Nintendo	O
except	O
Konami	O
and	O
Acclaim	O
,	O
who	O
produced	O
their	O
own	O
PCBs	O
,	O
but	O
used	O
Nintendo	O
's	O
provided	O
gray	O
cartridge	B-Protocol
shells	O
.	O
</s>
