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This Quick Start Guide covers setup of the Satechi Core USB-C to 4K HDMI Adapter (ST-AC4KHY, ST-AC4KHP, ST-AC4KHB, ST-AC4KHS): connecting an HDMI cable to your display and to the adapter, plugging the adapter into your USB-C host device, and using the correct port on MacBook Neo.

Setup steps:

Step 1: Connect an HDMI Cable to Your External Display

• Plug one end of a standard HDMI cable (not included) into the HDMI input port on your external monitor, TV, or projector.
• An HDMI 2.0 cable is recommended for optimal 4K/60Hz performance. HDMI 1.4 and above are backwards compatible.

Step 2: Connect the HDMI Cable to the Adapter

• Connect the other end of the HDMI cable to the HDMI port on the adapter.
• Use only a standard HDMI-to-HDMI cable. Uni-directional video cables (such as USB-C to HDMI or USB-C to DisplayPort cables) are not supported and will not carry a signal.

Step 3: Plug the Adapter into Your USB-C Host Device

• Insert the USB-C connector into a compatible USB-C or Thunderbolt port on your laptop or device.
• Compatible host interfaces: Thunderbolt 3, Thunderbolt 4, USB4, and USB-C 3.2 Gen2.
• The white LED indicator will illuminate when the adapter is connected and receiving power.
• Your display should automatically mirror or extend depending on your OS settings.

Important: If Using with MacBook Neo, Connect to the Correct Port

• MacBook Neo has two USB-C ports that look identical but function differently. Only the port closer to the hinge (USB 3) supports video output; the port closer to the trackpad (USB 2) does not.
• Insert the USB-C connector into the USB 3 port. The adapter will not function if connected to the USB 2 port.

Specifications:

• HDMI Port: up to 4K/60Hz
• LED Indicator: Solid white: connected to host / Off: disconnected from host
• Cable: 12.5 cm / 4.9 in
• Dimensions: 4.5 × 2.5 × 1 cm / 1.7 × 0.98 × 0.39 in
• Available Colors: Citrus (ST-AC4KHY), Blush (ST-AC4KHP), Indigo (ST-AC4KHB), Silver (ST-AC4KHS)

Important Notes

• Maximum supported resolution is 4K (3840 × 2160) at 60Hz. Actual resolution and refresh rate depend on the capabilities of your host device and connected display.
• Your host device must support DisplayPort Alt Mode (DP Alt Mode) over USB-C for this adapter to function.
• A standard HDMI-to-HDMI cable is required to connect the adapter to your display. Uni-directional video cables (USB-C to HDMI, USB-C to DisplayPort) are not supported.
• When connecting to a MacBook Neo, plug the adapter into the USB-C (USB 3) port. The adapter will not function if connected to the other USB-C (USB 2) port.
• If no video output: confirm your monitor's input source is set to the correct HDMI channel; verify your HDMI cable is in good working condition and try a different cable if available.

Certifications & Safety: FCC Class B, CE Certified, CAN ICES(B)/NMB(B), WEEE