Universal Travel Adapter with 2.4A Dual USB - All-in-One International Power Charger for US, UK, EU, AU & Asia (150+ Countries) - Compact Green Wall Charger for Travel, Business Trips & Vacation Essentials

I purchased this adapter for China/Asia trip and it was indispensable. Not only is the voltage different (220v 50hz China versus 120v 60hz US), there are THREE different types of plugs used in China - US style double flat plugs, EU/UK style double round plugs, and the double/triple slanted flat plugs used in Australia and New Zealand.Luckily this adapter is able to tackle both the voltage problem as well as all three plugs. The adapter has plugs for US, EU, and AUS pins so I could find power no matter which kind of outlet I was faced with. Furthermore the integrated USB ports allowed me to charge multiple devices at the same time and let me keep the large rear outlets for laptops instead of using it for USB power bricks for phones and cameras.I also owned the previous older version of this adapter and find this new updated version with USB ports to be slightly smaller which is great for travel.The adapter is not without its faults though. One issue that is consistent with both the older version and the newer version is that the plugs are not well refined and engaging and retracting the plug pins can be difficult. Often the pins get stick and the mechanisms to engage and retract the pins get stuck and you'd have to jiggle them to get them to work again. Since there are so many plugs in the adapter, I can understand that the mechanism for engaging them is overly complicated and prone to failure. This new version has a button to retract/release but even that is not always perfect. It seems the mechanism s not built for tight tolerances or the materials used flex or move too much to be consistent. The USB ports also were too tight and my USB cables would get stuck and would require a lot of force to loosen them.Overall though the mechanisms often get stuck, it's functional albeit with a little bit of frustration.