My first thought about this product is that it was very cool. My second thought about this product was is it safe? This product has amps 15A/2.1A. The volts are input 120VAC. The safety is tamper resistant. The rating of this product is cETLus approved. This has been tested to UL and CSA standards.
What is nice about this product is that it provides 4 receptacles and 2 USB ports in a single housing. I really like that they offer 2 USB ports. This can come in handy in the house. I know that my kids are always looking for USB ports to plug in their electronics. Another cool feature that this product offer is that its double. You can use this as one sided or slide the bottom to open and get double sided.
They are easy to replace and put in your original outlet. They do have direction on the back and on their website. If you follow them then you won't have any trouble replacing them. You can find product on their website below or at your local Menards.