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The Verdict
Value vs. Trade-off
The LG 34U640B-B is a powerhouse for productivity-focused setups that need to pull double duty for gaming. The standout feature is the USB-C connectivity with 65W Power Delivery, allowing you to dock a laptop, charge it, and output to the 3440 x 1440 WQHD display with a single cable. Professionals will love the integrated KVM switch (Dual Controller), which lets you manage two PCs with one mouse and keyboard—a rare find at this price point. For entertainment, the 144Hz refresh rate and AMD FreeSync Premium provide a fluidity that standard 60Hz office monitors can't match, making motion feel incredibly crisp.
The primary trade-offs are the entry-level HDR10 performance, which lacks the brightness for a true "wow" factor, and the 65W charging limit, which may struggle to keep high-performance workstation laptops topped off under heavy loads. Additionally, while the 99% sRGB coverage is excellent for general work, serious color graders might find it limiting.
However, when you weigh these minor concessions against the price, the value is undeniable. Finding a 34-inch curved ultrawide that combines high-speed gaming specs with pro-grade docking features like USB-C and KVM usually costs significantly more. If you want to eliminate desk clutter and transition seamlessly from spreadsheets to high-refresh gaming, this is an essential buy that punches well above its weight class.
The LG 34U640B-B is a powerhouse for productivity-focused setups that need to pull double duty for gaming. The standout feature is the USB-C connectivity with 65W Power Delivery, allowing you to dock a laptop, charge it, and output to the 3440 x 1440 WQHD display with a single cable. Professionals will love the integrated KVM switch (Dual Controller), which lets you manage two PCs with one mouse and keyboard—a rare find at this price point. For entertainment, the 144Hz refresh rate and AMD FreeSync Premium provide a fluidity that standard 60Hz office monitors can't match, making motion feel incredibly crisp.
The primary trade-offs are the entry-level HDR10 performance, which lacks the brightness for a true "wow" factor, and the 65W charging limit, which may struggle to keep high-performance workstation laptops topped off under heavy loads. Additionally, while the 99% sRGB coverage is excellent for general work, serious color graders might find it limiting.
However, when you weigh these minor concessions against the price, the value is undeniable. Finding a 34-inch curved ultrawide that combines high-speed gaming specs with pro-grade docking features like USB-C and KVM usually costs significantly more. If you want to eliminate desk clutter and transition seamlessly from spreadsheets to high-refresh gaming, this is an essential buy that punches well above its weight class.
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About this product
- Widescreen Workflows Made Effortless - Upgrade your desktop setup with a curved 34" 21:9 UltraWide WQHD display that lets you see more at once. Enjoy smooth 144Hz visuals, vibrant HDR color, and a sleek, narrow-bezel design—perfect for on-screen multitasking, creativity, and everyday comfort.
- Curved 21. 9 UltraWide WQHD Display - The 21:9 UltraWide WQHD (3440×1440) display gives you room to work across multiple apps at once—reducing window switching and improving focus. The subtle 1800R curve follows your natural line of sight for comfortable long sessions, while the sleek design keeps your workspace open, clean, and distraction-free.
- Up to 99% sRGB Color Coverage - Up to 99% sRGB coverage and HDR10 support deliver balanced color and smooth tonal transitions across documents, media, and HDR content.
- USB Type-C. All-in-One Connectivity - USB-C connectivity simplifies your setup by handling display, data, and up to 65W laptop charging through a single cable. With DisplayPort and HDMI and two USB ports also on board, it’s easy to connect laptops and peripherals for a cleaner desk and smoother workflows.
- Dual Controller (KVM Switch) - Control two PCs with a single monitor, keyboard, and mouse. Easily switch between devices and move files between systems with simple drag-and-drop—streamlining your setup and reducing desk clutter without extra hardware.
Specifications
- Brand
- LG
- Model
- 34U640B-B.AUS
- Screen
- 34 Inch
- Resolution
- Ultrawide QHD
- Aspect Ratio
- 21:9 Ultrawide
- Refresh Rate
- 144 Hz
- Response Time
- 2ms - 5ms
- Adaptive Sync
- AMD FreeSync
- Features
- Curved Screen, Adjustable Stand, USB-C Hub / Docking, HDR Support
- Connectivity
- HDMI, DisplayPort, USB-C / Thunderbolt
- Use Case
- Gaming, Creative / Professional, Office / Everyday Use
- Brand
- LG
- Panel
- VA
- Width
- 31.9 Inches
- Height
- 18.3 Inches
- Depth
- 8.7 Inches
- Weight
- 17 pounds
- Colour
- Black
- Warranty
- 1 Year Manufacturer
- Released
- 2026-03-04T00:00:01Z
- Part number
- 34U640B-B.AUS
- Manufacturer
- LG
- GTIN
- 00195174147368