for Some Cell Phones CPC Wireless Router SIM Card Extension Cable WiFi Nano to Mini SIM Card Extension Cable Adapter Extender FPC Cable Test Board Circuit Board Card Reader

There's not much to say other than it works. I got this to extend a simcard tray in an edge server. I use it as my portable onsite router and sometimes I need to switch to a different carrier. The way it's designed, the simcard is buried underneath a large heatsink and impossible to do on the fly swaps. This takes care of that by allowing me to put the simcard in a more accessible location.

Exeutive Summary: A decently eqipped extension kit for testing SIM chips in various devices with varying circuit designs, however, the adapters seemed to not work in a regular SIM tray (although that's likely user error) and the kit came with no instructions on how to use the cables, the external SIM tray, or the adapters. Instructions on use are provided on the Amazon item listing, however. TLDR; No instructions were included with this test kit. It seems to be a pattern when ordering from Vine. I understand that the items are provided as tests, but it's necessary to know how to use something when trying to test it. That's where instructions come in. So, without them, it was an automatic two star deduction. I'll never rate an item higher than three stars when no instructions are included. To the credit of the supplier, though, they did provide instructions on the Amazon item listing. That is not where they belong, however, they should be included with the kit or at minimum a URL or QR code included with a web address linking to the guide. I did allow an additional star, though, because the instructions actually were provided even though there was search involved to find them. That said, I had an idea how to assemble the kit and I was able to get it installed and running successfully on a test phone without immediately possessing the instructions. I matched the cell phone SIM chip to the cable circuit design (later finding out that Cable A of A through D). I was able to swap SIMs on an unlocked phone without pulling the tray multiple times and the adapters worked well for this purpose. The SIM reader board that was provided did require a bit of finagling to get the adapters and sim cards into the reader. It wasn't difficult but for fear of breaking it, I was a little more gente with inserting the adapters and it took a couple of tries to get them fully inserted and seated properly.. I was not able to test all four SIM circuit cables that came with the kit, though, because I did not have a diverse enough range of hardware available to test them all. I was able to successfully test the A and B circuit design cables but not the C or D cables. All-in-all, I encountered no problems using the SIM extension with the cables I was able to test and I don't expect there would be any issues testing SIMs with the C and D cables either. A problem I did run into was using one of the adapters in a normal SIM tray. I was trying to adapt a NANO SIM card to fit a MICRO sim card tray and for whatever reason, the SIM card was unreadable when it was in the NANO to MICRO adapter. I am certain I was doing something wrong, however, and that this is not a defect with the product as the adapters worked quite well with SIM Chips on the circuit board that was provided. I'm just not sure if the adapters are designed specifically for this SIM test rig and won't work in a normal SIM tray, or if I was doing something wrong, what that something was. I am going to try again, however, and see if I can get it working and I will update the review once I determine what is happening with the adapter and the SIM tray. All-in-all, this is a diverse kit that can be used to test multiple SIM activated devices. Equipped with multiple cable options, a SIM reader circuit board, SIM tray push, and multiple mounting options, it's a robust testing kit if you have a need to test mutliple SIMs on given devices.