Applies to: SFG14-73, SFG16-72, SFG14-74, SFG16-73 and AV16-71P only. These wiring examples describe ports to check; they do not establish exact combined modes for every regional SKU.

A two-screen TS4 cable arrangement to check

Reviewed Acer Swift Go / AV16-71PSpecified Thunderbolt host cable → Acer Thunderbolt USB-C portCalDigit TS4
  1. TS4 DisplayPort outputDisplayPort cableScreen 1 · DisplayPort input
  2. TS4 downstream ThunderboltUSB-C video-to-HDMI adapter + HDMI cableScreen 2 · HDMI input
Connection schematic, not physical socket positions. Match the labels on your equipment.

The TS4 has no built-in HDMI socket. For two HDMI monitors, the DisplayPort route also needs a correctly directed DisplayPort-to-HDMI adapter. The required adapter rating follows the requested mode. Do not use an ordinary TS4 USB-C data socket as the second video route. CalDigit: TS4 specifications and host requirements

If both monitors have HDMI

The TBT4-UDZ provides built-in HDMI outputs. A simple starting arrangement uses one screen from each numbered output group. Connect the computer to the dock’s host Thunderbolt port; its data-only USB-C port is not a display output. Compare this route with the cost and complexity of TS4 adapters. Plugable TBT4-UDZ: host, output groups and charging

Check the generation and power

Acer’s 2024 announcement identifies SFG14-73 and SFG16-72. Its 2025 announcement identifies SFG14-74, SFG16-73 and AV16-71P. All five reviewed families have two Thunderbolt 4 ports; charging requirements still need the regional SKU. Acer: Swift Go SFG14-73 / SFG16-72 announcement, January 2024 Acer: SFG14-74, SFG16-73 and AV16-71P specifications, January 2025

The reviewed SFG14-73-98HU lists a 100 W supply. A TS4’s 98 W ceiling does not prove that it replaces that supply for every workload. Keep the existing charger while checking battery behavior. Acer: SFG14-73-98HU / NX.KSGEK.00S specifications

When the second monitor fails

  1. Disconnect the second screen and confirm the first works at its intended mode.
  2. Test the second screen alone using its intended dock output and selected monitor input.
  3. Reconnect both and select extended desktops in Windows. Check the offered mode of each while both remain connected.
  4. If each works alone but not together, record both resolutions and refresh rates. Confirm the exact host/dock combination rather than assuming the dock’s headline maximum applies.
  5. Check charging and sleep/wake separately. Keep the laptop’s model code, dock firmware and adapter models with your results.

Sources & scope

These instructions combine published references with our proposed diagnostic sequence. This setup has not been physically tested by Connect Your Dock. Manufacturer documents can change; use the exact model and scope linked below.

How we assess evidence