Used - Like New: ASUS ROG Strix XG258Q 24.5" Full HD 1080p 240Hz 1ms Eye Care G-SYNC compatible FreeSync Esports Gaming Monitor with DP dual HDMI - Newegg.com
Do HDMI cables Support 240Hz Refresh Rate? - Pointer Clicker
GIGABYTE M27Q X 27" 240Hz 1440P -KVM Gaming -Monitor, 2560 x 1440 SS IPS Display, 1ms (MPRT) Response Time, 92% DCI-P3, 1x Display Port 1.4, 2x HDMI 2.0, 2x USB 3.0, 1x USB Type-C
Amazon.com: Avico USB C to HDMI 2.0 Adapter – 4K 60hz HDR – 2K 144hz – 1080P 240hz – Male to Female – for Monitors, TVs, PCs, MacBooks, Projectors – Thunderbolt Compatible : Electronics
4K High Speed HDMI Cable 30ft - HDMI 2.0 4K Ultra HD HDR Cord - Suppor – DreamBirdie
4K HDR HDMI Cable 20ft - High Speed HDMI 2.0a Ultra HD Cord - Supports – DreamBirdie
How to Get Max Refresh Rates with Gaming Monitors - Viotek