Hello Thu,
The LED light on O11DE is digital RGB. Is there any digital RGB slot on your motherboard? If no, you can use our DRGB controller BPTA-DRGBMFC.
Also is it possible to switch the pump to DDC pump?
Yes, you can use our BP-DDCPLS32-PWM with the M4*28mm screws.
https://shop.bitspower.com/index.php?route=product/product&product_id=7044&search=DRGBMhttps://shop.bitspower.com/index.php?route=product/product&product_id=5250&search=BP-DDCPLS32-PWM