UGREEN Micro HDMI Male + Mini HDMI Male to HDMI Female Adapter – HD129

The UGREEN HD129 is a dual-ended adapter that connects devices with Micro HDMI or Mini HDMI ports to standard HDMI cables. This compact adapter features gold-plated connectors and supports resolutions up to 4K at 30Hz, making it essential for students presenting from tablets or cameras and business professionals connecting compact devices to projectors or external displays. The bidirectional design eliminates the need to carry multiple adapters for different port types.

Key Features & Benefits

• Dual Connector Design: Features both Micro HDMI (Type D) and Mini HDMI (Type C) male connectors on opposite ends with a standard HDMI (Type A) female port in the middle, so you can connect action cameras, tablets, or DSLRs to any standard HDMI cable without purchasing separate adapters.
• 4K Resolution Support: Transmits video signals up to 3840×2160 at 30Hz and Full HD 1080p at 60Hz, which means your GoPro footage or tablet presentations display with sharp detail on projectors and monitors without quality degradation.
• Universal Device Compatibility: Works with devices including Raspberry Pi Zero, GoPro Hero cameras, Sony Alpha series cameras, ASUS ZenBook laptops, Lenovo tablets, and numerous other compact electronics that use smaller HDMI ports.
• Gold-Plated Connectors: Corrosion-resistant gold plating on all three connection points ensures stable signal transmission and maintains picture quality even after months of use in bags or camera kits.
• Plug-and-Play Operation: Requires no drivers, external power, or software installation—simply connect the appropriate end to your device and attach your existing HDMI cable to start displaying content immediately.

Technical Specifications

Connector Configuration

• Input 1: Micro HDMI (Type D) male, 19-pin
• Input 2: Mini HDMI (Type C) male, 19-pin
• Output: HDMI (Type A) female, 19-pin
• Note: Use one input connector at a time, not simultaneously

Video Performance

• Maximum Resolution: 4K (3840×2160) at 30Hz
• HD Support: 1080p at 60Hz, 1080i, 720p
• Color Depth: Up to 48-bit Deep Color
• HDMI Version: HDMI 1.4 specification

Audio Specifications

• Audio Pass-through: Uncompressed digital audio
• Supported Formats: PCM, Dolby Digital, DTS
• Channel Support: Up to 7.1 surround sound

Physical Dimensions

• Total Length: 2.36 inches (60mm)
• Weight: 0.35 oz (10g)
• Housing Material: ABS plastic with metal connector shells
• Color: Black with gold-plated contacts

Compatibility & Features

• HDCP Support: HDCP 1.4 compliant for protected content
• Bandwidth: Up to 10.2Gbps
• 3D Support: Compatible with 3D video signals
• Bi-directional: Either Micro or Mini HDMI end can serve as input

Supported Devices (Examples)

• Cameras: GoPro Hero series, Sony Alpha, Canon EOS M series
• Computers: Raspberry Pi Zero, some ultrabooks and tablets
• Other: Graphics tablets, portable gaming devices, smartphone docks

Use Cases & Applications

For Students: Photography and film students can use the UGREEN HD129 to review footage from their mirrorless cameras or action cameras on classroom displays during critiques. The adapter stays connected to your presentation cable, so when you need to quickly switch from your laptop to your tablet for a class presentation, you simply unplug one device and connect the other. Engineering students working with Raspberry Pi projects benefit from the Micro HDMI connection for debugging and demonstrations on external monitors.

For Business Professionals: Traveling presenters can carry this lightweight adapter instead of multiple dongles, reducing the risk of forgetting the right connector before an important pitch. Connect your compact Windows tablet to conference room projectors using the Mini HDMI port, or hook up a colleague’s action camera to display field footage during strategy meetings. The adapter works particularly well for real estate agents who shoot property videos on compact cameras and need to display them immediately on client meeting room TVs.

Content Creation & Photography: Videographers shooting with compact cinema cameras or DSLRs equipped with Mini/Micro HDMI ports can monitor their shots on larger displays during production. The 4K support at 30Hz accommodates most cinematic frame rates, allowing directors to preview footage quality before wrapping a shoot. Wildlife and sports photographers using mirrorless cameras with Micro HDMI can connect to laptops in the field for immediate image review and culling.

Home Entertainment: Connect older tablets or compact media players with non-standard HDMI ports to your home theater system. The adapter enables you to use existing high-quality HDMI cables rather than replacing your entire cable infrastructure with specialized Mini or Micro HDMI cables.

The UGREEN HD129 provides reliable connectivity for compact devices at an affordable price. However, keep in mind that this is a passive adapter—it doesn’t convert signals or boost them, so your final resolution depends on both your source device’s output capabilities and your display’s input specifications. The 4K support at 30Hz works well for presentations and most video playback, but gamers or those editing high frame-rate footage should verify their devices support this refresh rate. The compact size makes it easy to lose, so consider attaching it permanently to a frequently-used HDMI cable or storing it in a dedicated pocket of your equipment bag.