Refresh rate and resolution monitor specifications when connecting a USB-C/Thunderbolt™ cable from a Blade system to a monitor HDMI, Display, or USB-C port
The performance of your external display is affected by the connection type used to connect your monitor to the system. This answer provides information on the monitor’s refresh rate and resolution based on the following connection types:
- USB-C/Thunderbolt™ to HDMI Monitor
- USB-C/Thunderbolt™ to Display Port Monitor
- USB-C/Thunderbolt™ to USB-C Port Monitor
Note: Refer to the cable and monitor’s device specifications to determine the version of the connection protocol.
When using adapters or docking stations, make sure its specifications must also match the ports used in the setup. The dock or adapter must also support Multi-Stream Transport (MST) for multiple screens.
The Thunderbolt™ cable should have the Thunderbolt™ logo on the cable itself.
USB-C/Thunderbolt™ to HDMI
Note: HDMI devices are not required to support the maximum bandwidth of the HDMI implemented. Therefore, it is not guaranteed that a display will support the refresh rates.
Ensure that the following refresh rates are supported by the HDMI version of the monitor and set the refresh rate and resolution accordingly.
| Connection Protocol | Version | Resolution | Refresh Rate |
| HDMI Alt Mode | 1.4b | 720p HD (1280×720) | 30Hz, 60Hz, 120Hz |
| 1080p FHD (1920 x 1080) | 30Hz, 60Hz, 120Hz, 144Hz | ||
| 1440p QHD (2560 x 1440) | 30Hz, 60Hz, 75Hz | ||
| 4K UHD (3840 x 2160) | 24Hz, 25Hz, 30Hz | ||
| 4K (4096 × 2160) | 24Hz | ||
| 2 | 720p HD (1280×720) | 30Hz, 60Hz, 120Hz | |
| 1080p FHD (1920 x 1080) | 30Hz, 60Hz, 120Hz, 144Hz, 240Hz | ||
| 1440p QHD (2560 x 1440) | 30Hz, 60Hz, 75Hz, 120Hz, 144Hz | ||
| 4K UHD (3840 x 2160) | 30Hz, 60Hz with 24 bit/px color depth |
USB-C/Thunderbolt™ to DisplayPort
Note: Check the version of the external monitor’s DisplayPort. Ensure that the following refresh rates are supported and set the refresh rate and resolution accordingly.
Connection Protocol | Version | Resolution | Refresh Rate |
| DP Alt Mode | 1.2 | 1080p FHD (1920 x 1080) | 60Hz, 85Hz, 120Hz, 144Hz, 240Hz |
| 1440p QHD (2560 x 1440) /1440p | 30Hz, 60Hz, 85Hz, 120Hz, 144Hz, 165Hz | ||
| 4K UHD (3840 x 2160) 4K | 30Hz, 60Hz, 75Hz | ||
| 1.4 | 1080p FHD (1920 x 1080) | 60Hz, 85Hz, 120Hz, 144Hz, 240Hz | |
| 1440p QHD (2560 x 1440) | 30Hz, 60Hz, 85Hz, 120Hz, 144Hz, 165Hz, 240Hz | ||
| 4K UHD (3840 x 2160) | 30Hz, 60Hz, 75Hz, 120Hz | ||
| Single 4K UHD display (3840 × 2160) with 24 bit/px RGB color | 120Hz | ||
| Single 5K UHD display (5120 × 2880) with 30 bit/px RGB color | 60Hz | ||
| Single 8K UHD display (7680 × 4320) with 24 bit/px RGB color | 30Hz |
USB-C/Thunderbolt™ to USB-C/Thunderbolt™
Connection Protocol | Version | Resolution | Refresh Rate |
| DisplayPort | 1.2 | 1080p FHD (1920 x 1080) | 60Hz, 85Hz, 120Hz, 144Hz, 240Hz |
| 1440p QHD (2560 x 1440) | 30Hz, 60Hz, 85Hz, 120Hz, 144Hz, 165Hz | ||
| 4K UHD (3840 x 2160) | 30Hz, 60Hz, 75Hz | ||
| 1.4 | 1080p FHD (1920 x 1080) | 60Hz, 85Hz, 120Hz, 144Hz, 240Hz | |
| 1440p QHD (2560 x 1440) | 30Hz, 60Hz, 85Hz, 120Hz, 144Hz, 165Hz, 240Hz | ||
| 4K UHD (3840 x 2160)* | Up to 2 monitors: 30Hz, 60Hz 1 monitor only: 75Hz, 120Hz | ||
| 5K UHD (5120 x 2880) | 24Hz, 30Hz, 60Hz | ||
| 8K UHD (7680 x 4320)* | 24Hz, 30Hz, 60Hz |
*Display Stream Compression (DSC) support required
