The SonicWave 621 uses IEEE 802.11ax, commonly known as Wi-Fi 6. It operates on both the 2.4 GHz and 5 GHz bands with 2x2 MU-MIMO on each radio, delivering meaningful throughput gains and a 75% reduction in latency compared to the previous 802.11ac Wave 2 standard. It is also backward compatible with 802.11a, b, g, n, and ac devices.

No. The SonicWave 621 can be managed as a standalone unit through SonicWall Wireless Network Manager (WNM) in the cloud. However, when connected to a SonicWall firewall running SonicOS 7.1.1 or higher, the AP gains access to deep packet inspection, content filtering, application control, and Capture Advanced Threat Protection for all wireless traffic, which significantly enhances security.

The SonicWave 621 is powered by 802.3at PoE+ with a maximum draw of 21W. A Multi-Gigabit 802.3at PoE+ injector is included with select SKUs, or you can power the unit from a compatible PoE+ switch. An optional DC 12V power adapter is also available if PoE is not available on your switch.

The SonicWave 621 supports up to 256 client associations per radio, with 150 clients per radio recommended for reliable performance. The AP supports up to 8 virtual access points (VAPs) and SSIDs, making it practical for environments that need separate network segments for staff, guests, and IoT devices on a single unit.

The SonicWave 621 uses 2x2 MU-MIMO on both radios and is well suited for smaller offices and moderate-density spaces. The SonicWave 641 steps up to 4x4 MU-MIMO on both radios with a larger antenna array, making it a better fit for open floor plans and higher device counts. The SonicWave 681 is the flagship model, featuring 8x8 MU-MIMO on the 5 GHz radio and a 5 GbE uplink, designed for large high-density environments such as conference centers and lecture halls.