LG B4 OLED (2024)

LG's budget OLED gets a major 2024 upgrade: all four HDMI ports are now full HDMI 2.1 at 48 Gbps with VRR and ALLM, matching the C4 for connection compatibility. The trade-off versus the C4 is the older Alpha 8 processor and a cap of 4K@120Hz instead of 144Hz on the same panel sizes. Two HDMI ports face the side for easy console plugging; two face downward. eARC for soundbars sits on HDMI 2.

LG’s 2024 budget OLED with four full-bandwidth HDMI 2.1 ports, eARC on HDMI 2, two USB 2.0, optical, and Gigabit Ethernet.

Device Information

Manufacturer
LG
Release Year
2024
Model Number
OLED65B4PUA (representative; sizes 48-83")
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) 2 USB 1 / 2 USB 2.0 for media and peripherals
Optical TOSLINK (S/PDIF) 1 Digital Audio Out
RJ-45 (Gigabit Ethernet) 1 LAN
RF Antenna Input (Coaxial) 1 Antenna/Cable In Single antenna in US (ATSC); EU models add a second satellite input

Notes & Compatibility

All four HDMI 2.1 ports support 48 Gbps and 4K@120Hz (not 144Hz like C4). HDMI 2 has eARC. Two HDMI side-mounted, two rear; only two USB 2.0 (one fewer than C4).

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