https://raytac.blog/2026/04/23/immediate-product-change-notice-on-raytac-nordic-nrf51822-bluetooth-modules-mdbt40-chip-antenna-replacement/Raytac Corporationzh-tw2026-04-23T09:19:46+00:00Immediate Product Change Notice (PCN-26041701) on Raytac MDBT40 module’s Chip Antenna ReplacementNordic, nRF51, Raytac, MDBT40, nRF51822, BLE, bluetooth, MDBT40-256V3, MDBT40-256RV3, IOT, FCC, CE, IC, BT, PCN, modul, antenna, certification, abietec, announcementhttps://raytac.blog/wp-content/uploads/2026/04/features-1.png?w=150