Item Type: USB C to HD Multimedia Interface AdapterMaterial: Aluminium AlloyInterface: HD Multimedia Interface x 2Resolution: Support 4K x 2K (3840x2160), Backward Compatible with 1080P, 720P, Etc.USB C Male Connector is Compatible for Thunderboil 3, Please Ensure That the Host USB C Port on the Device is Compliant with USB 3 3.1 SpecificationCompatible for MacBook12, for MacBook Pro 2016, for MacBook Pro 2017, for MacBook Pro 2018, for MacBook Pro 2019, for MacBook Air 2018, for MacBook Air 2019, for Chromebook, for HUAWEI mate30, for HUAWEI mate30 pro, for Samsung S10, for Samsung S9, for Samsung Note8, for Samsung Note 9, for HP Spectre Pavilion, for Huawei Matebook, for Dell XPS series, for Mi Air and Supports Mobile Phones and Tablets with DP Function.Package List1 x USB C to HD Multimedia Interface AdapterFor OS X, there is only Mirror mode, which cannot be extended with two different displays due to the limitations of for OS X.1USB C to Dual HD Multimedia Interface Adapter: The HD Multimedia Interface adapter connects devices with USB Type C ports to two external displays with 4K HD Multimedia Interface output. 2HD Resolution, No Latency: USB C to HD Multimedia Interface adapter has a resolution up to 4K (3840X2160P 60HZ) and is backwards compatible with 1080P, 720P, etc. Play games without lag. 3Compatible: HD Multimedia Interface adapter mirrors or extends your laptop, phone, tablet screen and streams 4K 60Hz or Full HD 1080P video directly to HDTV, monitor or projector. 4Interference Resistant: USB C to Dual HD Multimedia Interface adapter uses aluminum foil with braiding ground, multiple shielding to resist interference and stable signal transmission. 5Aluminum Alloy Housing: USB C to Dual HD Multimedia Interface adapter is made of aluminum alloy housing, which is excellent for heat dissipation, abrasion resistance, fingerprint resistance, and durability.