Getting Power to the Pepwave MAX BR1 Pro 5G on an RV

Hi, I am just about to buy and install that router for my RV but have a question about power. That device comes with a molex pigtale to get power into it. As a computer person, my first instinct is to go to Amazon and find a computer style 12v DC power brick and wire that together. But I’m wondering if there are better, or more robust options for me? An ad for that device on MobileMustHave suggests a fuse block as an add-on which implies connecting the device to internal power sources somehow. Any ideas or thoughts are welcome, thanks very much

wire directly into the DC on the vehicle. use proper size fuses. some will put a 12/12 transformer or similar in front to protect if not using a step up or step down transformer.