Mini PCIE WiFi Card, DualBand Wireless Adapter, 802.11AC Half Mini PCIE Interface Wireless Network Card, Maximum Speed Support 867Mbps

This worked perfectly for my older Dell Inspiron laptop. The laptop has been otherwise fine, but the built in wifi card has connection speed issues. This Definitely brought new life back to my Dell.One note is that the wifi slot was under the keyboard and you have to be VERY careful to remove the keyboard otherwise it will bend permanently. My other laptop had the slot underneath the laptop and just needed to remove a few screws to access it. This has nothing to do with the quality of the product but just a fair warning for those that have the slot under the keyboard.Experience level: My degree and former career is in engineering and have professionally installed computer products before. I still tinker on the side.