GPD WIN 4 - Page 20

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Step 5: After successfully installing the driver, you can check if the graphics card expansion dock is successfully driver-enabled in the "Device Manager".
Note:
The Oculink cable does not support hot-swapping. If you connect the GPD G1 to your computer via the Oculink SFF-8611 dual male port cable while the comput
er is on, the GPD G1 may not be recognized. Frequent hot-swapping may cause two problems: short circuits and arcs. In addition, hot-swapping may cause dama
ge to components and input and output pins.
When you are ready to remove the Oculink SFF-8611 cable, do not use force. Instead, press the latch on the connector and gently remove it. Failure to do so m
ay result in damage to the interface.
Difference between USB4 and Oculink SFF-8611 Cable Connections
Oculink and USB4 each use independent PCIe channels. Oculink is directly connected to PCIe and is only responsible for video signal output. USB4 supports more
protocols, such as Thunderbolt 3, and can transmit both video and data signals. The differences between USB4 and Oculink SFF-8611 cable connections are shown
in the following table:
HDMI DP1 DP2 SD 4.0 USB A1 USB A2 USB A3
USB4 connection

     
Oculink connection

     
USB4+Oculink connection

     
Details are as follows:
 Connected via USB4 Cable:
At this time, all of the GPD G1's HDMI, DisplayPort, USB A, and SD 4.0 card reader interfaces are functional. You can connect up to three external displays and in
sert a USB drive into the USB A port to copy and store important data.
USB4 connection
      
 Connected via Oculink SFF-8611 Cable:
At this time, the HDMI and DisplayPort interfaces of the GPD G1 are functional, while the USB A and SD 4.0 card reader interfaces are not. The Oculink connectio
n directly connects to PCIe, providing 63Gbps of effective bandwidth, and can maximize the performance of the built-in graphics card.
Oculink connection
      
 Both Cables Connected:
At this time, the built-in graphics card uses the PCIe channel connected via the Oculink SFF-8611 cable, which has exclusive access to 63Gbps of effective bandwid
th. The USB4 cable is responsible for data transmission for the USB A and SD 4.0 card reader interfaces.
USB4+Oculink connection
      