Dell announces M4800, M6800 Precision laptops built for business pros | Engadget
M6800 - BT upgrade - Dell Community
Wireless wifi BT4.0 Wlan For Broadcom BCM94352HMB Dell DW1550 Wireless AC 867Mbps 802.11ac half Mini PCI e bluetooth wifi card|half mini pci-e|wifi cardbluetooth wifi card - AliExpress
Dell Precision M6800 17.3" Laptop i7-4930MX - Red - Windows
Dell Precision M6600 - Come sostituire moduli WLAN, WWAN e Bluetooth - YouTube