Searching serial in IoT And LTE

[T640(8WW25PA)] T640(8WW25PA) HP t640: AMD Ryzen R1505G 2.4 GHz (up to 3.3 GHz)/ 8 GB/ 64GB/ Embedded GPU/ Intel 802.11ac + BT/ Serial Port/ Win 10 IoT 64-bit 2019

T640(8WW25PA) HP t640: AMD Ryzen R1505G 2.4 GHz (up to 3.3 GHz)/ 8 GB/ 64GB/ Embedded GPU/ Intel 802.11ac + BT/ Serial Port/ Win 10 IoT 64-bit 2019

$ 1,287.90

[T550(8H940PA)] T550(8H940PA) HP t550: Intel Cel QC J6412/ 8 GB/ 64 GB/ Embedded GPU/ RT+BT 5.2/ Windows 10 IoT Enterprise 2021/Serial

T550(8H940PA) HP t550: Intel Cel QC J6412/ 8 GB/ 64 GB/ Embedded GPU/ RT+BT 5.2/ Windows 10 IoT Enterprise 2021/Serial

$ 1,019.27