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Fake Goods Verification Method
 
Feature Comparison List of Real and Fake Realtek 8139D Chip
 
Real Realtek 8139D chip Fake and Shoddy Realtek 8139D Chip
Picture Description Picture Description
Real chip has 100 pins. Fake chip usually has 128, 125 or 120 pins rather than 100 pins.
No picture The network interface card of a real chip can be self-identified under WINDOWS, WIN2000 and WINXP operating systems. No picture The network interface card of a fake chip can be self-identified under WINDOWS, WIN2000 and WINXP operating systems.
The bios slot for disc-free boot of real chip network interface card is good to use The bios slot for disc-free boot of fake chip network interface card is not good to use.
*The text of real chip is clearly printed, strokes are thin, and you will feel very smooth when you touch it with fingers. *The text color of fake chip is very white, the text is coarsely printed, strokes are thick, and you can feel obvious convex and concave sense when you feel it with fingers.
*Two corners of the real chip are 2 round small concave grooves. *The small concave groove of fake chip either disappears or becomes small hole after grinding.
The model of real chip is marked as RTL8139D The model of fake chip is either marked as REL8139D or does not include letters of R and C.

The part with “*” description is key identification feature, please note the red circled part in the figure.
 
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