Does the Etrade Supply worth to trust?

Arvin
12.12.2017

I want to buy some iPhone spare parts there, they claim their products are OEM. Has anyone bought it before? Need help, thank you.

Evil
12.12.2017

Lol

Will this work with my 500w PSU (Power Supply Unit)? Anyone know if a 500w PSU will be safe with my new GPU? Specs; Motherboard: Asus M5A78L-M LX V2 CPU: AMD FX-4100 Quad core running 3.6ghz New GPU: AMD HD Radeon 7870 2gb GHZ edition Devices connected; 3 USBs (MOUSE, KEYBOARD, WEBCAM & Maybe iPhone) 1 HDD 0 CD 0 DVD 0 Blue Rays
Why will my iPhone 4S only work with a power supply? Recently my iPhone will only operate when being charged. Once I take it off charge, the phone lasts for 1-2minutes (it is fully charged) and switches off. Then I try turn turn it back on, and it says it needs charging. please could someone give a reason for why this is and also how to tackle it. I will also give points for answers!
What is a good portable power supply for a pc? I have a Mac mini and a monitor, along with an iphone and speakers, what would be a good power generator/rechargeable box that has 4 female ends for wall outlets. I need something like this for trips
Supply and demand curve (economics)? Can I make a graph where D1 and S1 are the iPhone 4s and D2 and S2 are the iPhone 5 and I can compare the two on one graph like that?