Intel wireless 4965 card: This is a Dual-band card which supports 2.4 GHz and 5 GHz.Intel 3945 Mini-Card: This is a Dual-band card which supports 2.4 GHz and 5 GHz.Dell wireless 1505 card: This is a Dual-band card which supports 2.4 GHz and 5 GHz.Dell wireless 1490 card: This is a Dual-band card which supports 2.4 GHz and 5 GHz.Dell wireless 1390 card: This card only supports 2.4 GHz.Inspiron 1525 was shipped with5 different wireless cards: Dell wireless 1515 card: This is a Dual-band card which supports 2.4 GHz and 5GHz.Note: Intel wireless 5100 only works with 1x2 MIMO supported routers. Intel wireless 5100 card: This is a Dual-Band card which supports 2.4 GHz and 5 GHz (with 1x2 MIMO support).Dell wireless 1515 card: This is a Dual-Band card which supports 2.4 GHz and 5 GHz.Dell wireless 1397 card: This card only supports 2.4 GHZ.Inspiron 1545 was shipped with 3 different wireless cards: Scroll down to check the system specifications.Select 'System Configuration' and expand 'Components'.Enter your system's service tag and click on 'Submit'.You should first check the wireless card install on both of your laptops: Both these laptops were shipped with different wireless cards with different specifications.
