need assistance choosing an appropriate power supply

[zarikvicenty]

So i just bought a Ryzen 3 1300x, MSI B350M gaming pro motherboard, Samsung 850 EVO SSD and a 2 TB hard drive. I plan to buy a GTX 1050 ti,16 gb of DDR4 3000 and a NZXT S340 case but the thing that i'm having trouble with is picking an appropriate PSU. I've gathered a fair amount of knowledge on this matter but am concerned about picking the wrong one.I think a 500w PSU would be enough but i dont know. Help would be much appreciated. I also wanted to maybe put in an led strip and/or RGB case fans but don't know if that would influence what PSU I would buy. This is my first PC build by the way so, sorry if my part list looks stupid. I think that covers everything thanks in advance.

 

[MrN1ce9uy]

Your parts list looks just fine. I'd recommend you spend the extra on a 1050 Ti.

Either way though, I recommend the SeaSonic, but this Corsair would be fine. PCPartPicker part list / Price breakdown by merchant

Power Supply: Corsair - CX (2017) 450W 80+ Bronze Certified ATX Power Supply ($39.99 @ Amazon)
Total: $39.99
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2017-10-01 11:25 EDT-0400

*SeaSonic S12II 520 - https://www.newegg.com/Product/Product.aspx?Item=N82E16817151094&ignorebbr=1&nm_mc=AFC-C8Junction&cm_mmc=AFC-C8Junction-PCPartPicker,%20LLC-_-na-_-na-_-na&cm_sp=&AID=10446076&PID=3938566&SID=