: Equipped with integrated dual-band 802.11a/b/g/n/ac Wi-Fi , the device features an advanced antenna design and supports 802.11k/r/v protocols for seamless roaming between access points.
Another angle: sometimes product numbers are part of a series. For example, IPX could be the product line, and 822 the model number. Maybe similar to how Raspberry Pi has model names. But without knowing the actual background, I need to make that up.