enclosures

I bought my first NVMe type device: Kingston NV2 NVMe PCIe 4.0 SSD 250G M.2 2280 - SNV2S/250G https://amzn.eu/d/eKTjEcK With intention to use in on older sata laptop, using an enclosure. I thought this was an m-key connector when I look it up. But all state "5 pins" identifier. Strangely...