HP ProBook 5320m have an unfortunately with a BIOS Lock is provided, I did not know at that time before buying. Man can not then be retrofitted a new wireless card so readily. I have a total of 3 different models tested, 2 were not recognized and approved by the Bios. The 6300, however, was accepted by the BIOS, Windows 8 has then installed the latest driver. The card runs at 2.4 & 5GHz mode (n + a) with full 300Mbits. The card can store up to 450mbits, my Fritz box only supports up to 300Mbits. I am very satisfied and recommend this map fully. The price is not available as compared with the other wireless cards, which may be obtained starting from 15-22 euros, very expensive.