Features: This kit is designed to mount a high airflow quiet fan in the place of the stock for Dreamcast fan. It is specifically built for the Noctua NF-A4x10 5V fan. This mod shines in systems with GDROM emulators like the USB-GDROM and the GDEMU. It makes those systems nearly silent. It may not do much to systems with the disk drive still installed as the disk drive is louder than the cooling fan. The for Dreamcast Noctua Fan Cable, which custom built conversion cable that plugs into the fan connector and converts the signal so that the new fan functions properly (built in 10K resistor). type: A/B Colour:black Material:plastic Package Contents: 1 x Cooling Fan Kit A / 1 x Cooling Fan Kit 1 x Fan Adapter No Lid Part Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is 1-3cm.