iPhone 12 Models Use Qualcomm's X55 Modem - MacRumors
Amazon.com: SIM8200EA-M2 5G HAT with Antenna Supports 5G/4G/3G Supports 5G SA and NSA Onboard Snapdragon X55 Multi Mode Band for Raspberry Pi, Applicable for Regions with 5G Sub-6G Signal Coverage @XYGStudy :
Qualcomm's new X55 modem supports 5G speeds up to 7Gbps, but also LTE - GSMArena.com news
Amazon.com: Waveshare SIM8200EA-M2 5G HAT with Antennas 5G/4G/3G Support Snapdragon X55 Onboard Multi Mode Multi Band Applicable for Regions with 5G Sub-6G Signal Coverage : Electronics
Qualcomm's Snapdragon X55 modem is the 4G/5G solution we've been waiting for
Qualcomm Announces X55 Modem: 5G Multi-mode & New Advanced ICs