eWeLink - You are right, it's Sonoff Zigbee Bridge. Like

Setting up a Zigbee WiFi bridge using Tasmota and Sonoff hardware - Stuff Blog

ZBMINI - SONOFF Official

eWeLink Zigbee Bridge ZBBridge-SA Zigbee compatibility

SONOFF Zigbee Bridge Pro is the updated Zigbee bridge that enables you to manage up to 128 sub-devices with larger capacity and stability, plug-in devices can act as Zigbee routers to extend the network range. SONOFF Zigbee Bridge Pro newly added features like smart home security, local smart scene, and easy arm and disarm. You can customize 3 modes by setting different arming devices. The local smart scene always works well even Wi-Fi is disconnected.

SONOFF Zigbee Bridge Pro Hub, Wi-Fi & Zigbee Dual-protocol Supporting, App Control and Multi-Device Management, Compatible with SONOFF Zigbee Devices

Sonoff ZBMiniL2 is taking ZigBee to the extreme! - NotEnoughTech

General Itead Sonoff ramblings - now with Zigbee - Scargill's Tech Blog

eWeLink - You are right, it's Sonoff Zigbee Bridge. Like the RF Bridge, you can add multiple sub-devices to it.(up to 32 sensors/wireless switches)

SONOFF ZBMINI-L Zigbee 3.0 Smart Switch works without neutral wire - CNX Software

EACHEN High Performance eWeLink Zigbee Bridge Pro with Ethernet Connection

eWeLink & Sonoff User Group