Tired of slow Wi-Fi, unstable Bluetooth, signal interference, and poor compatibility in your smart devices? The BL-M7921AU1 from LB-LINK is the all-in-one wireless combo module you need to upgrade connectivity, speed up development, and deliver a premium user experience.
This highly integrated tri-band 802.11ax (Wi-Fi 6) + Bluetooth 5.4 module combines top-tier performance, ultra-low latency, wide coverage, and industrial stability into a tiny USB 3.0 form factor. It’s the best wireless solution for smart home, IoT, portable terminals, industrial control, in-car systems, and media devices.
BL-M7921AU1 supports 2.4GHz + 5GHz + 6GHz triple bands, fully compliant with IEEE 802.11a/b/g/n/ac/ax. It delivers a max PHY rate up to 1200Mbps, making data transmission, HD video streaming, and large file transfer smoother than ever.
2.4GHz: Stronger wall penetration, long-range coverage for basic connectivity
5GHz: High-speed channel for low-latency gaming and 4K/8K media
6GHz: Clean, interference-free band for premium high-speed performance
2T2R MIMO + 80MHz bandwidth for stronger signal and higher throughput
MU-MIMO & OFDMA: Connect more devices at the same time without lag
Beamforming & DBDC: Dual-band concurrent working for stable 24/7 operation
✅ Bluetooth 5.4 Dual Controller – Ultra-Stable Connections
Built with dual Bluetooth controllers, BL-M7921AU1 supports Classic Bluetooth + BLE dual mode, backward compatible with BT 5.4 / 4.2 / 2.1. It greatly improves connection distance, reduces power consumption, and eliminates interference between Wi-Fi and Bluetooth.
Stronger anti-interference between Wi-Fi & BT
Longer transmission range for audio, controllers, and sensors
Lower power consumption for battery-powered devices
Perfect for wireless headsets, gamepads, smart switches, and IoT sensors
✅ USB 3.0 High-Speed Interface – Easy Integration
The module uses a USB 3.0 (backward compatible with USB 2.0) interface, supporting up to 800Mbps throughput in USB 3.0 mode and 330Mbps in USB 2.0 mode. Plug-and-play design simplifies hardware design and speeds up product development.
Reserved UART/GPIO for flexible BT host selection
Built-in ESD protection & filter circuits
Minimal PCB layout effort, fast mass production
✅ Ultra-Compact Size – Fits Any Device
At only 27.0 × 17.8 × 2.5 mm, BL-M7921AU1 is one of the smallest tri-band Wi-Fi 6 + BT5.4 combo modules on the market. It can be easily embedded into:
Compact smart devices
Slim industrial pads
In-car infotainment systems
Mini media players & set-top boxes
IoT gateways & smart controllers
✅ Industrial-Grade Stability – Works in Harsh Environments
Designed for long-term reliable use, BL-M7921AU1 meets strict industrial standards:
Operating temperature: -20℃ to +70℃
Power supply: 3.3V ±0.2V, peak current 1.8A
ESD protection up to 3KV (HBM)
Excellent RF isolation & low PER
Support Wake-on-WLAN & Wake-on-BLE for low-power standby
✅ Lower R&D Cost & Faster Time-to-Market
BL-M7921AU1 provides complete technical support including datasheets, reference circuits, PCB layout guidelines, and driver solutions. Using this module can:
Shorten R&D cycle by 60%
Reduce BOM cost by 50%
Pass certification easier
Speed up product launch
Ideal Applications
Smart home gateways, cameras, speakers, displays
Industrial IoT terminals & wireless controllers
In-car infotainment & telematics systems
HD media players, set-top boxes, projectors
Portable devices, robotics, drones
Any device needing high-speed Wi-Fi + stable Bluetooth
Why Choose BL-M7921AU1?
✅ All-in-one combo: Wi-Fi 6 + BT5.4 in one module ✅ Tri-band future-proof: 2.4G + 5G + 6G full coverage ✅ 1200Mbps high speed: lag-free streaming & transfer ✅ USB 3.0 plug & play: easy integration ✅ Industrial-grade: wide temperature, high reliability ✅ Cost-effective: save time, cost, and engineering effort
Whether you’re developing consumer electronics, industrial equipment, or smart IoT devices, BL-M7921AU1 is your best choice for stable, high-performance wireless connectivity.
Contact us today for datasheets, samples, pricing, and customized technical support.
Guangming District, Shenzhen, as a research and development and market service base, and equipped with more than 10,000m² automated production workshops and logistics warehousing centers.
