This is the original m.2 Wi-Fi+ bt4 in 3268. It is Qualcomm Atheros QCNFA335 NGFF M.2 1630 802.11b/g/n WLAN Bluetooth 4.0 WiFi Card YCM9R it is a 16mm wide x 30 mm long (1630) M.2 card using key-A+E. [IMAGE]   If new card looks like it (30 mm length and a+e key), it should be simple to swap.  I think the width of card is flexible.  Your motherboard wlan m.2 slot should accommodate both 16 mm and 22 mm cards.it is possible that a new card with key-e would fit too, but for simple swap key-a+e is guaranteed to fit.
Is the simplest way to upgrade the Bluetooth on my 3268 PC to replace the wireless card (a quick Google indicates they're cheap and readily available).  Which card would be best and is it just a (compatible) card change, or is it more complicated?  Thanks
Inspiron 3268 Wireless M2 card upgrade to Bluetooth 5