LG's 2021 C1 puts HDMI 2.1 on all four inputs, so 4K@120Hz, VRR and ALLM work whichever port the console lands on, and PC gamers get G-SYNC Compatible and FreeSync Premium on top. The inputs run at 40Gbps rather than HDMI 2.1's full 48Gbps, which is still enough for 4K@120Hz at 10-bit 4:4:4. eARC sits on HDMI 2, so keep that one for the soundbar or receiver. On the 48–77" sizes three of the four HDMI ports face sideways; the 83" puts all four on the back. Use Ultra High Speed HDMI cables for 120Hz. Here's every port and the cables you'll need.
2021 LG OLED C1 with α9 AI Processor Gen4, 4K@120Hz gaming, Dolby Vision IQ, webOS 6.0.
Device Information
- Manufacturer
- LG
- Release Year
- 2021
- Model Number
- OLED C1 (e.g., OLED65C1PUB; sizes 48/55/65/77/83 available)
- Category
- TV
Source: manufacturer product page · Last updated: · How we verify port data →
Available Ports
| Connector | Quantity | Power (PD) | Capabilities | Label | Notes |
|---|---|---|---|---|---|
| HDMI 2.1 (Type A – Standard) | 1 | — | — | HDMI 1 | 4K@120Hz, VRR, ALLM |
| HDMI 2.1 (Type A – Standard) | 1 | — | — | HDMI 2 | eARC, 4K@120Hz, VRR, ALLM |
| HDMI 2.1 (Type A – Standard) | 1 | — | — | HDMI 3 | 4K@120Hz, VRR, ALLM |
| HDMI 2.1 (Type A – Standard) | 1 | — | — | HDMI 4 | 4K@120Hz, VRR, ALLM |
| USB Type-A (USB 2.0) | 3 | — | — | — | For media playback |
| Optical TOSLINK (S/PDIF) | 1 | — | — | — | Digital audio output |
| RJ-45 (100BASE-TX Fast Ethernet) | 1 | — | — | — | 10/100 Mbps: LG specifies 10BASE-T/100BASE-TX for webOS TVs, so wired tops out around 94 Mbps |
| 3.5mm TRS (Stereo Audio) | 1 | — | — | — | Headphone output |
| RF Antenna Input (Coaxial) | 1 | — | — | — | Antenna/cable |
Other LG TV models with the same ports
Notes & Compatibility
HDMI: 4x HDMI 2.1 (40Gbps, 4K@120Hz, VRR, ALLM on all 4 ports). eARC: HDMI 2. USB: 3x USB 2.0 Type-A. G-Sync, FreeSync Premium.
Common questions
How many ports does the LG OLED C1 48-83" OLED (2021) have?
The LG OLED C1 48-83" OLED (2021) has 11 ports in total: 4 × HDMI 2.1 (Type A – Standard), 3 × USB Type-A (USB 2.0), 1 × Optical TOSLINK (S/PDIF), 1 × RJ-45 (100BASE-TX Fast Ethernet), 1 × 3.5mm TRS (Stereo Audio) and 1 × RF Antenna Input (Coaxial).
What kinds of ports does the LG OLED C1 48-83" OLED (2021) have?
By connector family, the LG OLED C1 48-83" OLED (2021) has 4 HDMI, 3 USB, 2 Audio, 1 Network and 1 Video (Legacy).
How many USB ports does the LG OLED C1 48-83" OLED (2021) have?
The LG OLED C1 48-83" OLED (2021) has 3 USB ports: 3 × USB Type-A (USB 2.0).
What video connections does the LG OLED C1 48-83" OLED (2021) have?
The LG OLED C1 48-83" OLED (2021) has 5 ports that can carry video: 4 × HDMI 2.1 (Type A – Standard) and 1 × RF Antenna Input (Coaxial).
