ASUS Republic of Gamers (ROG) 43-inch gaming monitor has acquired the HDMI 2.1 FRL certification at Allion Labs, Inc. and is now the world’s first HDMI 2.1-certified monitor.

Fixed Rate Link (FRL) is the signaling technology supported in the HDMI 2.1 Specification. Compared to Transition Minimized Differential Signaling (TMDS) used in HDMI 2.0, HDMI 2.1 FRL can simultaneously transmit data across 3 or 4 lanes. In FRL mode, each lane supports a data rate up to 12Gbps and a maximum bandwidth of 48Gbps over 4 lanes.

The new ROG gaming monitor has passed all FRL tests conducted by Allion Labs. FRL Electrical, FRL Pixel Decoding, and FRL Protocol tests are performed to make sure the monitor can deliver a groundbreaking gaming experience with 4K UHD resolution (3840×2160) at a 120Hz refresh rate.

Another benefit of HDMI 2.1 is Auto Low Latency Mode (ALLM), which automatically adjusts the setting of lower latency or image optimization depending on the content. In addition to the 43-inch model, 27- and 32-inch models of the HDMI 2.1-compatible gaming monitor will also be available soon.

Since 2010, Allion has been a subcontractor of Sony HDMI ATC and capable of offering HDMI compliance testing. Vendors can submit their products to Allion Labs for both pre-tests and certification programs. At Allion, HDMI compatibility testing can be customized based on different product features. Allion facilitates the certification process and fulfills diverse testing needs by providing one-stop testing services for sink, source, cable, and connector products.

For more information about HDMI FRL certification or related testing services, please contact us at

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