Chapter 2 – DFI BT253 User Manual
Page 25
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25
Chapter 2 Hardware Installation
Chapter 2
Expansion Slots
SIM Slot
The SIM slot on the system board is used to insert a SIM card.
Mini PCI Express Slots
The Mini PCI Express slots on the system board are used to install one half and/or full size
Mini PCIe card such as network cards or other cards that comply to the mini PCI Express
specifications into the mini PCI Express slot.
microSD Socket
The microSD socket allows you to install a microSD card for the expansion of available
memory.
Mini PCIe for
PCIe, USB, and 3G
signals
3
SIM slot
Mini PCIe for mSATA
Mini PCIe for USB, PCIe
and LPC signals microSD socket
(optional)
Standby Power LED
This LED will blink when the system is in the standby mode. It indicates that there is power
on the system board. Power-off the PC and then unplug the power cord prior to installing any
devices. Failure to do so will cause severe damage to the motherboard and components.
Standby Power LED
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