pls help

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Hey /g/,

Audio pleb here, I need your help! This is what I have:

Headphones: Audio-Technica ATH-M50x
Amp: M-Audio Bass Traveler

When I connect my headphones to my amp and to my computer from there, it creates static that has become unbearable. However, the static was almost silent when I used to connect my amp to the audio jack on my old keyboard, but since then I've replaced that keyboard with a mechanical one that lacks an audio jack.
I tried running the amp with the same headphones to my cell phone and it sounds good, with the exception of little static blips that sound when I stop audio.

I understand that the Traveler is a low-end device but really I just want a static-free setup for watching movies, playing games, and listening to music. I do not have an external video card, but I believe my computer uses the one integrated in my Nvidia GTX 1070 GPU. I understand that there is a lot of electronic noise around integrated devices and that can lead to static.

So I've thought of two options to work around the static but I wanted to see if anyone could put their two cents in:

1: Get this device (Sabrent USB External Stereo Sound Adapter), then connect as such - headphones -> amp -> usb adapter -> PC.

Link: https://www.amazon.com/Sabrent-External-Adapter-Windows-AU-MMSA/dp/B00IRVQ0F8/ref=sr_1_1?ie=UTF8&qid=1482195072&sr=8-1&keywords=usb+to+audio+jack

2: Get a different amp (FiiO E10K USB DAC) that goes from audio to USB

Link: https://www.amazon.com/dp/B00LP3AMC2/ref=wl_it_dp_o_pC_S_ttl?_encoding=UTF8&colid=3LBHEITA1VDGY&coliid=I11DIRBIM7ZWUT

So what do you all think? I'd prefer to go with the cheaper route, but if the FiiO sounds better and it solves the problem then I may just go with that. I appreciate all other suggestions though but I'd prefer to not spend more than $100 on a solution.