This entry-level OLED gives you perfect blacks and instant pixel response at an aggressive price. Two HDMI 2.1 ports hit 4K@120Hz with VRR, but the other two cap out at 4K@60Hz — plan your source placement wisely. eARC runs on one input 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.
2021 LG entry-level OLED B1 with α7 AI Processor Gen4, 120Hz gaming. Only 2 HDMI 2.1 ports.
Device Information
- Manufacturer
- LG
- Release Year
- 2021
- Model Number
- OLED B1 (e.g., OLED65B1PUA; sizes 55/65/77 available)
- Category
- TV
Available Ports
| Connector | Quantity | Label | Notes |
|---|---|---|---|
| HDMI 2.0b (Type A – Standard) | 1 | HDMI 1 | 4K@60Hz only |
| 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 2.0b (Type A – Standard) | 1 | HDMI 4 | 4K@60Hz only |
| USB Type-A (USB 2.0) | 2 | — | For media playback |
| Optical TOSLINK (S/PDIF) | 1 | — | Digital audio output |
| RJ-45 (Gigabit Ethernet) | 1 | — | 10/100Mbps Ethernet |
| RF Antenna Input (Coaxial) | 1 | — | Antenna/cable |
Notes & Compatibility
HDMI: 2x HDMI 2.1 (4K@120Hz, VRR) + 2x HDMI 2.0 (4K@60Hz). eARC: HDMI 2. USB: 2x USB 2.0 Type-A.
Common questions
How many ports does the LG OLED B1 55-77" OLED (2021) have?
The LG OLED B1 55-77" OLED (2021) has 9 ports in total: 2 × HDMI 2.0b (Type A – Standard), 2 × HDMI 2.1 (Type A – Standard), 2 × USB Type-A (USB 2.0), 1 × Optical TOSLINK (S/PDIF), 1 × RJ-45 (Gigabit Ethernet) and 1 × RF Antenna Input (Coaxial).
What kinds of ports does the LG OLED B1 55-77" OLED (2021) have?
By connector family, the LG OLED B1 55-77" OLED (2021) has 4 HDMI, 2 USB, 1 Audio, 1 Network and 1 Video (Legacy).
How many USB ports does the LG OLED B1 55-77" OLED (2021) have?
The LG OLED B1 55-77" OLED (2021) has 2 USB ports: 2 × USB Type-A (USB 2.0).
What video connections does the LG OLED B1 55-77" OLED (2021) have?
The LG OLED B1 55-77" OLED (2021) has 5 ports that can carry video: 2 × HDMI 2.0b (Type A – Standard), 2 × HDMI 2.1 (Type A – Standard) and 1 × RF Antenna Input (Coaxial).
Does the LG OLED B1 55-77" OLED (2021) have a headphone jack?
No. The LG OLED B1 55-77" OLED (2021) has no 3.5 mm headphone jack. Its audio connections are 2 × HDMI 2.0b (Type A – Standard), 2 × HDMI 2.1 (Type A – Standard), 1 × Optical TOSLINK (S/PDIF) and 1 × RF Antenna Input (Coaxial).
