AMD R7 240 User Manual page 19

Figure 4–1 Connecting the Power Cables
1 Power supply
2 Existing card
3 New card
8. If your AMD CrossFire configuration requires an AMD CrossFire internal bridge
interconnect between cards, remove the protection tags from the ends of the
AMD CrossFire interconnect before using it to connect the cards.
© 2014 Advanced Micro Devices, Inc.
Caution:
Always handle the AMD CrossFire bridge interconnect by the connector only.
Do not push or pull on the flexible cable.
AMD CrossFire™ Technology 13
AMD Radeon™ R7 240/R7 250 Graphics