Dell Latitude D830 Series JC977 Laptop Wireless WiFi Card.
Dell Part Number: JC977 0JC977 CN-0JC977
Broadcom Part Number: BCM94311MCAG
Compatible Part Numbers: T60H937.00 LF
Model Number: DW1490
Compatible Models: Dell Latitude D830 D820 D630 D430 D520 E6400 Series