好像有的人說鋁比較可以防電磁波,有的人說鋼材跟鋁材沒啥太大差別,厚度才是關鍵說@@a
那像下面這個跟聯力相比較.....
http://www.chenbro.com.tw/product/p...=2&s=202&pid=56

Excellent EMI Solution
Well design EMI shielding SUS covers for 5.25" bays
EMI conductive spring for slot windows
True contact per 25 mm around chassis edges
CE/FCC compliant