Question C55D-B5203 - Best WiFi Card?

[TankCR]

I want to upgrade the wifi card in my wife's Toshiba C55D-B5203, it appears to use the Mini PCIe, yet when I search that style on Amazon the pinouts don't appear to match. The pinouts on the card look more like the M.2 so what am I missing??? I want the absolute fastest card I can buy for it.

 

[TankCR]

I found this model number Broadcom BCM943142Y PCIe M.2 Mini Card (NGFF 22x30), this seems to indicate the M.2?