<s>
The	O
board	B-Device
solid-state	I-Device
drive	I-Device
,	O
commonly	O
referred	O
to	O
as	O
the	O
BSSD	O
,	O
is	O
an	O
implementation	O
of	O
a	O
regular	O
SSD	B-Device
,	O
but	O
in	O
a	O
different	O
form	O
factor	O
and	O
packaging	O
,	O
which	O
is	O
perhaps	O
optimized	O
for	O
certain	O
aspects	O
of	O
the	O
storage	O
device	O
,	O
such	O
as	O
cost	O
or	O
density	O
.	O
</s>
<s>
The	O
term	O
board	O
in	O
BSSD	O
refers	O
to	O
the	O
printed	O
circuit	O
board	O
(	O
PCB	O
)	O
,	O
from	O
references	O
to	O
on-board	O
SSDs	B-Device
.	O
</s>
<s>
While	O
a	O
regular	O
SSD	B-Device
also	O
contains	O
a	O
PCB	O
,	O
the	O
packaging	O
of	O
the	O
SSD	B-Device
physically	O
encloses	O
the	O
PCB	O
inside	O
it	O
,	O
making	O
it	O
more	O
easy	O
to	O
handle	O
the	O
storage	O
device	O
,	O
since	O
the	O
packing	O
protects	O
the	O
PCB	O
from	O
the	O
damaging	O
effects	O
electro	O
static	O
discharge	O
.	O
</s>
<s>
Multiple	O
BSSDs	O
are	O
housed	O
in	O
a	O
disk	B-Device
enclosure	I-Device
that	O
connect	O
to	O
the	O
storage	B-Application
server	I-Application
via	O
SAS	O
or	O
some	O
other	O
interconnect	O
.	O
</s>
<s>
The	O
BSSD	O
comes	O
under	O
the	O
umbrella	O
of	O
block	B-General_Concept
data	I-General_Concept
storage	I-General_Concept
,	O
as	O
does	O
the	O
regular	O
SSD	B-Device
and	O
uses	O
logical	B-Device
block	I-Device
addressing	I-Device
.	O
</s>
