Product name: Compatible with HDMI 2.1 high-definition adapter Shell material: aluminum alloy Features: 1. Synchronous audio and video transmission, large screen display, realistic picture. Bring you a different office experience 2. Arbitrary extension of long-distance transmission, two compatible HDMI short lines connected into one line, can achieve longer distance transmission, easily solve the problem of insufficient length of decoration/pre-buried line 3. Aluminum alloy shell protection, aluminum alloy shell, fast heat dissipation, wear-resistant and anti-fingerprint to enhance computer protection Note: To achieve 8K effect, you need to be equipped with 8KHMDI line and support 8K equipment to achieve Single gross weight: 20g Packing method: bagged Packaging includes: adapter*1