bluetooth 5 4 rk3576 development board

{"cid":"91223339","title":"RK3576 Development Board with Bluetooth 5.4 4G Network Connectivity and Octa-core 2.2 GHz Performance","imgUrl":"https:\/\/img.chinax.com\/nimg\/b8\/1a\/62b231f4650c183693093b35d8da-200x200-1.jpg","attrs":{"Price":"100~150 USD","Brand Name":"YNH","Model Number":"536","Minimum Order Quantity":"100","Delivery Time":"5-8days","Place of Origin":"Shenzhen","Certification":"UL","Packaging Details":"100pcs per box","Payment Terms":"T\/T","EMMC":"Standard 32G ( 64G \/ 128G \/ 256G Optional )","operating system":"Android1 4.0 (kernel Is Linux5.10)","Network support":"1000M Ethernet , Support POE Network Port;2.4G+5G Dual-band Wifi6 Module, Bluetooth 5.4;Support 4G , Connect PCI-E Interface 4G Module","Decoding resolution":"Support Up To 8K","System Upgrade":"Support USB Cable \/ U Disk\/ Network Upgrade","Serial Port":"7, 6 TTL Serial Ports (optional 4 RS232 And 2 RS485 ) , 1 Debug","DDR":"Standard 4G ( 8G\/16G Optional ) LP DDR 4","CPU":"Rockchip RK3576 , Octa -core, 2.2 GHz"}}