The Dell website seems to indicate that the device is from Broadcom:
http://www.dell.com/support/article/uk/en/ukbsdt1/SlN135763/EN?c=uk&l=en&s=bsd&cs=ukbsdt1#Issue0_1_1
The Dell website seems to indicate that the device is from Broadcom:
http://www.dell.com/support/article/uk/en/ukbsdt1/SlN135763/EN?c=uk&l=en&s=bsd&cs=ukbsdt1#Issue0_1_1