NO-PCI3兄弟(NO-PCI、NO-PCI LTD、NO-PCI+)、還有一個表兄弟(NO-PCI EXPRESS)

http://www.hkepc.com/bbs/viewthread...ighlight=no-pci
no-pci have two main functions ( or more I don't known )
1. Reflected EM wave, reduce EM to effected sound card or TV card.
2. Some caps on NO-PCI, caps can smoothen the power supply curve. More no-pci add on PCI slots will more effective due to more caps to smoothen power curve.
ps: caps→電容

自製NO-PCI，窮人志向
有興趣的人可以DIY...
HKEPC還有很多資料...懶得po了..
他們有用RMAA測過音效卡的noise level有降低1.6dB..

像譽騰出的金鐘罩也有隔離電磁波干擾的效果
http://www.dearhoney.idv.tw/Audio/JinChung/