This classic OLED still delivers stunning color and true blacks, though HDMI 2.0 limits it to 60Hz. All four HDMI ports support full 2.1 specs (48Gbps), enabling 4K@120Hz, VRR, and ALLM on any input. eARC runs on HDMI 2 for lossless audio return to a soundbar. For the 2.1 ports, use Ultra High Speed HDMI cables — standard cables top out at 18Gbps. Here's every port and the cables you'll need.
2019 LG OLED C9 with α9 AI Processor Gen2, first consumer TV with full HDMI 2.1 48Gbps. Legendary for gaming.
Device Information
- Manufacturer
- LG
- Release Year
- 2019
- Model Number
- OLED C9 (e.g., OLED65C9PUA; sizes 55/65/77 available)
- Category
- TV
Available Ports
| Connector | Quantity | Label | Notes |
|---|---|---|---|
| HDMI 2.1 (Type A – Standard) | 1 | HDMI 1 | 48Gbps, 4K@120Hz, VRR, ALLM |
| HDMI 2.1 (Type A – Standard) | 1 | HDMI 2 | eARC, 48Gbps, 4K@120Hz, VRR, ALLM |
| HDMI 2.1 (Type A – Standard) | 1 | HDMI 3 | 48Gbps, 4K@120Hz, VRR, ALLM |
| HDMI 2.1 (Type A – Standard) | 1 | HDMI 4 | 48Gbps, 4K@120Hz, VRR, ALLM |
| USB Type-A (USB 3.2 Gen 1) | 1 | — | USB 3.0 for high-speed media |
| USB Type-A (USB 2.0) | 2 | — | For peripherals |
| Optical TOSLINK (S/PDIF) | 1 | — | Digital audio output |
| RJ-45 (Gigabit Ethernet) | 1 | — | 10/100Mbps Ethernet |
| 3.5mm TRS (Stereo Audio) | 1 | — | Headphone output |
| Composite Video (RCA) | 1 | — | Via included adapter dongle |
| RF Antenna Input (Coaxial) | 1 | — | Antenna/cable |
Notes & Compatibility
HDMI: 4x HDMI 2.1 (48Gbps full bandwidth, 4K@120Hz, VRR, ALLM). eARC: HDMI 2. USB: 3x (1x USB 3.0, 2x USB 2.0). DTS supported. G-Sync Compatible via firmware.
Common questions
How many ports does the LG OLED C9 55-77" OLED (2019) have?
The LG OLED C9 55-77" OLED (2019) has 12 ports in total: 4 × HDMI 2.1 (Type A – Standard), 1 × USB Type-A (USB 3.2 Gen 1), 2 × USB Type-A (USB 2.0), 1 × Optical TOSLINK (S/PDIF), 1 × RJ-45 (Gigabit Ethernet), 1 × 3.5mm TRS (Stereo Audio), 1 × Composite Video (RCA) and 1 × RF Antenna Input (Coaxial).
What kinds of ports does the LG OLED C9 55-77" OLED (2019) have?
By connector family, the LG OLED C9 55-77" OLED (2019) has 4 HDMI, 3 USB, 2 Audio, 2 Video (Legacy) and 1 Network.
How many USB ports does the LG OLED C9 55-77" OLED (2019) have?
The LG OLED C9 55-77" OLED (2019) has 3 USB ports: 1 × USB Type-A (USB 3.2 Gen 1) and 2 × USB Type-A (USB 2.0).
What video connections does the LG OLED C9 55-77" OLED (2019) have?
The LG OLED C9 55-77" OLED (2019) has 6 ports that can carry video: 4 × HDMI 2.1 (Type A – Standard), 1 × Composite Video (RCA) and 1 × RF Antenna Input (Coaxial).
