Currently the supported models are:
Balance series: 20X*, 310 5G, 310 Fiber 5G, 310X, 310X 5G, 380X*, 580X*, SDX Pro^, EPX^
MAX series: MBX, MBX 5G, MBX Mini, PDX, BR1 Classic (HW 3), BR1 ESN, BR1 Pro (HW 5/6), BR1 IP55 (HW 4 or above), HD2 Mini (SKU: MAX-HD2-MINI-XXXX-RM-T), HD1 Dome, HD2 Dome, Transit Pro E, Transit Core, UBR LTE, SFE (HW 2 or above), SFE CAM.
* with FlexModule Mini EXM-MINI-1LTEA-W, EXM-MINI-1LTEA-P, EXM-MINI-1LTEA-R, EXM-MINI-1LTEA-K or EXM-MINI-1GLTE-G
^ with FlexModule Plus EXM-3LTEA-W, EXM-3LTEA-P, EXM-3LTEA-R, EXM-3LTEA-K, EXM-2GLTE-G or EXM-2X5G
Further information can be found on the product page here: https://www.peplink.com/products/sim-injector/