The JMD53 is a highly‑integrated and reliable NTN satellite communication module, featuring a compact dimension of only 17.7×15.8×1.8 mm. It supports 3GPP R17 IoT‑NTN for N255(L), N256(S) and B23 frequency bands. The main chip and peripheral components are internally integrated, so users only need to design simple external circuits to implement NTN satellite communication functions.