> For the complete documentation index, see [llms.txt](https://cookiebunker.gitbook.io/cookiebunker/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://cookiebunker.gitbook.io/cookiebunker/dma/4k-dc500-fuser/4k-dc500-fuser-overview.md).

# 4K DC500 Fuser Overview

### **Supported Interfaces**

⚠️ **You must use only ONE interface type at a time**

* **HDMI 2.1 (FRL 48 Gbps)**
* **DisplayPort 1.4 / 2.1**

❌ HDMI + DP mixing is **not supported**

***

### **Resolution & Refresh Rate Support**

#### **HDMI 2.1**

* 1080p: up to **480–540Hz**
* 1440p: up to **320–355Hz**
* 4K: up to **144–158Hz**

#### **DisplayPort 1.4**

* 1080p: up to **480Hz**
* 1440p: up to **320Hz**
* 4K: up to **144Hz**

{% hint style="info" %}
Actual limits depend on GPU generation and DSC behavior.
{% endhint %}

***

### **Hardware Requirements**

#### **Host & Secondary PC GPUs**

* HDMI: NVIDIA RTX 3060 / AMD RX 6500 XT or better
* DP: NVIDIA GTX 10-series / AMD RX 500-series or newer

#### **Secondary PC CPU**

* Minimum **6 threads**

#### **Monitor**

* HDMI 2.1 FRL 48 Gbps
* DP 1.4 / DP 2.1 input

***

### ✅ You're Done

You now have a basic understanding of the 4K DC500 Fuser and the minimum requirements.

{% hint style="info" %}
It is now recommended to view the 4K DC500 [**Cables & Controls**](/cookiebunker/dma/4k-dc500-fuser/cables-and-controls.md).
{% endhint %}