User`s manual
DA-681 Series Hardware User’s Manual  Hardware Installation 
ATTENTION 
Make sure you insert the card in the right direction. The card cannot be inserted if you insert the 
card in the wrong direction. 
ATTENTION 
The DA-681 embedded computer does not support the CompactFlash hot swap and PnP (Plug 
and Play) functions. It is necessary to remove power source first before inserting or removing the 
CompactFlash card. 
Installing a SATA Hard Disk 
The DA-681 embedded computer has one SATA connector for installing a SATA hard disk. To 
install a 2.5-inch SATA hard disk, follow these instructions. 
1.  Disconnect the DA-681 from its power source. 
2.  Open the top cover of the DA-681. A hard disk bracket is located on the right side of the 
DA-681. 
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