The 2023 LG C3 was the model that cemented "all four HDMI ports are full HDMI 2.1" as standard for LG OLEDs — every one of the four 48 Gbps inputs supports 4K@120Hz, VRR, ALLM and Dolby Vision gaming. eARC sits on HDMI 2. Three USB-A 2.0, optical, Gigabit Ethernet, the LG-style 3.5mm AV/headphone combo jack and an RF antenna input round things out. The C3 caps at 4K@120Hz; the C4 added a 144Hz mode the next year.
LG’s 2023 mainstream OLED with four HDMI 2.1 ports (48 Gbps, 4K@120Hz, VRR), eARC on HDMI 2, three USB 2.0 and Gigabit Ethernet.
Device Information
- Manufacturer
- LG
- Release Year
- 2023
- Model Number
- OLED65C3PUA (representative; sizes 42-83")
- Category
- TV
Available Ports
| Connector | Quantity | Label | Notes |
|---|---|---|---|
| HDMI 2.1 (Type A – Standard) | 1 | HDMI 1 | 48 Gbps, 4K@120Hz, VRR, ALLM |
| HDMI 2.1 (Type A – Standard) | 1 | HDMI 2 (eARC) | 48 Gbps, 4K@120Hz, VRR, ALLM; eARC |
| HDMI 2.1 (Type A – Standard) | 2 | HDMI 3 / HDMI 4 | 48 Gbps, 4K@120Hz, VRR, ALLM |
| USB Type-A (USB 2.0) | 3 | USB 1 / 2 / 3 | USB 2.0 for media/peripherals |
| Optical TOSLINK (S/PDIF) | 1 | Digital Audio Out | — |
| RJ-45 (Gigabit Ethernet) | 1 | LAN | — |
| RF Antenna Input (Coaxial) | 1 | Antenna/Cable In | EU models add a separate satellite input |
| Composite Video (3.5mm Mini Jack) | 1 | AV/Headphone Combo Jack | LG combo jack — composite video in (with adapter) and analog audio out |
Notes & Compatibility
All four HDMI ports are full 48 Gbps HDMI 2.1 with 4K@120Hz, VRR and ALLM. HDMI 2 carries eARC. The C4 (2024) raised the max refresh to 144Hz; the C3 caps at 120Hz.
