I've recently got gifted (with points by employer) this gaming beast, but I don't really need it and selling it to get some cash.
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It has everything you need:
1440x2560 144hz display
125% sRGB coverage
I unboxed it out of excitement, but it is brand NEW (received it yesterday) and all includes all packaging:
HDMI 2.0 cable
3 years warranty
Did some research, and this thing goes somewhere around 810000KRW in 11st and gmarket, if you can find one.
750000 KRW, pm me.
If it is not too far, I will be able to deliver it to you (only after some deposit for guarantee).