The **Mecer 55S99U** is a **55-inch 4K UHD LED panel** with a **3840×2160 resolution**.
Here are some key specifications:
### **Display & Panel**
- **Backlight Type:** DLED direct
- **Contrast Ratio:** 5000:1
- **Response Time:** 6.5ms
- **Viewing Angle:** 178° (H/V)
- **Color Gamut:** NTSC ≥68%
- **Brightness:** 300cd/m² (typical)
### **Hardware & Performance**
- **CPU:** ARM Cortex-A53 (Quad-core, 1.5GHz)
- **GPU:** G52MP2 (Dual-core)
- **RAM:** 1.5GB DDR3
- **Storage:** 8GB Flash
- **Audio Output:** 8W + 8W
- **Wi-Fi:** 2T2R
- **Bluetooth:** v5.1
### **Connectivity**
- **USB Ports:** 2 (USB 2.0)
- **HDMI Ports:** 3
- **AV In:** 1 (mini)
- **RJ-45 Ethernet:** Yes
- **SPDIF Out:** 1 (optical)
### **Software & Features**
- **Operating System:** Android 11
- **Dolby Audio:** Yes
- **HDMI-ARC:** Supported (HDMI-1)
- **HDMI-CEC:** Yes
- **PVR & Teletext:** Yes
- **OTA Updates:** Yes
### **Physical Dimensions & Power**
- **Without Stand:** 1226×89×720mm
- **With Stand:** 1226×243×741mm
- **VESA Mount:** 300×300mm
- **Net Weight:** 10.9kg (without stand)
- **Power Input:** 100-240V AC
- **Rated Power:** 150W
- **Standby Power:** ≤0.5W