Since I’m getting ready for Paris, thought I’d make certain that if I need to get a SIM there for my phone, I’d have a decent place to store my home SIM. I also dig the credit card form factor so I can store it in my travel wallet.
http://amzn.to/2rCTySo

• Compact, slim design that will fit in most wallets for optimal portability. Convenient screen cleaner with a microfiber cloth to remove debris and clean dirty surfaces
• MicroSD/TF Card (up to 32GB) reader and storage bay. SIM Card ejection tool and storage area for swapping and exchanging SIM Cards
• Backwards compatible with USB 1.1. Supported Operating Systems: Windows XP or later / Mac OS 10.0 or Later / Linux 2.4 or later
• USB Micro-B for sync and charge of mobile devices, at USB 2.0 speeds (up to 480Mbps)
• Compatible with Samsung Galaxy S7/S7 Edge/S6/S6 Edge/S5/Grand Prime, Note Series, G4/G3, Moto G/X/E, Nokia Lumia Series, Android Micro USB Port Devices and Dual Sim Smartphones