for Flipper Zero Modification Module, Upgrade 2.4G Module Expansion Board, Support NEF Sniffer/Mousejacker, CC1101 Module, WiFi Multiboard Development Board for Flip

Got the item as described, it was happy to join powers with the Flipper Zero and both ESP32 Marauder and NRF24 worked out of the box. Can't wait to compare its prowers to the original WiFi Dev Board w/o antenna. It's by far a better deal than the Dev Board.

It did not came with a quick guide or instructions or suggestions of how it works

First, I’m going to be clear on this. This is more like a swiss army knife. It combines existing functions into one form factor and allows the user to select among them. While it duplicates the Sub-GHz radio, it adds range (distance) to its capacity. So you are getting some good bang for your buck, just be aware this isn’t going to instantly unlock frequency ranges.Second, I dinged it one star because of a lack of documentation. Even equipment used by pros has an instruction manual that covers the function of each switch on the device. It’s a little disorienting if you don’t know what apps exist for this thing, or how to set the Flipper Zero to use each function (some of the onboard apps can be set to use external modules instead of the internal hardware). It’s a little hard to RTFM if there’s no FM to R.That said, as someone who does testing for a living, this is a handy add-on to have for testing, so you don’t have to bring in the heavier tools before you’re sure you need them. The antennae add bulk, but it is necessary bulk (antenna size matters for wavelengths used, according to physics). There are housings available for 3D Printing, I’ll just need to design a pin protector and case for the antennae when not in use.

no reviews so I thought I would share my experience.hint: pretend in esp32 mode (green led) that it is a official wifi dev board.flashed and worked first try.good luck.