Banana Pi BPI-R4 heatsink

Banana Pi Router design BPI-R4/BPI-R4 Pro(MT7988)
1

BPI-R4 back and wifi7 seatsink

Banana Pi BPI-R4 cooling fin 1
Banana Pi BPI-R4 cooling fin 1800×600 65.6 KB

Banana Pi BPI-R4 cooling fin 3
Banana Pi BPI-R4 cooling fin 3800×600 115 KB

Banana Pi BPI-R4 cooling fin 4
Banana Pi BPI-R4 cooling fin 4800×600 92.3 KB

2

I guess this does not fit into the metal case.

3

it can not use in CNC case as below:

Banana Pi BPI-R4 Case 7
Banana Pi BPI-R4 Case 7800×240 47.5 KB

BPI-R4 Product kit case with this heatsink inside

Banana Pi BPI-R4 product 1
Banana Pi BPI-R4 product 1800×533 56.9 KB