One Intel Dual Band Wireless-N 7260 - It partially works as it is able to connect to a network a little while, but its throughput drops to zero under any load and doesn't recover on its own without rebooting the system. Linux kernel error messages revealed that this WLAN module is simply done for. Bluetooth functionality has not been tested.Four Realtek 8723BEs - These WLAN modules rapid fire PCIe bus errors, filling up the syslog in Linux until all system RAM is consumed. These modules are clearly toast.Final Sales Policy for Nonfunctional or Defective Parts - Unless the item in question is damaged or lost during shipping, no refunds nor a replacement item will be issued for any reason.