Bottom and Left-side view
a
Kensington slot
b
Ventilation slots
c
VGA port
d
RJ-45 port
e
HDMI port
f
USB 3.0 ports
g
Hard disk drive/Memory/Mini PCI Express Card slot compartment
h
Battery latch - manual
i
Battery pack
j
Battery latch - spring loaded
k
Ventilation slots
8
9
7
11
Lenovo B4400
10
1
2
3
4
5
6
65