| Name | Version | Description | Download |
| HD-A6 Spec | V1.1 | Dual-mode LED display player box A6 specification | |
| HD-B6 Specification | V1.0 | ||
| HD-A5 Spec | V1.2 | Dual-mode LED display player box A5 specification | |
| HD-A4 Spec | V1.2 | Dual-mode LED display player box A4 specification | |
| HD-A3 Spec | V3.1 | Asynchronous sending box A3 specification | |
| HD-C15C Specification | V2.2 | ||
| HD-C15C Spec | V1.0 | Asynchronous sending card C15C specification | |
| HD-C15 Spec | V1.0 | Asynchronous sending card C15 specification | |
| HD-C35C Specification | V2.2 | ||
| HD-C35C Spec | V1.0 | Asynchronous sending card C35C specification | |
| HD-C35 Spec | V1.0 | Asynchronous sending card C35 specification | |
| HD-D15 Spec | V1.0 | Door lintel screen and small screen, etc sending card D15 specification |
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