GRL Certifies new 40-inch Thunderbolt 4 UltraWide (TM) Monitor from LG

New 40-inch panel promises outstanding performance and seamless compatibility with the latest standards and existing products

SANTA CLARA, Calif., Dec. 9, 2021 /PRNewswire/ — Granite River Labs (GRL), a global leader in engineering services and test solutions for high speed connectivity and charging, has certified LG’s new 40-inch UltraWide™ 40WP95C monitor as fully Thunderbolt 4 and USB4® compliant. Using Intel’s JHL8440 chipset, the display meets the performance needs of demanding laptop and desktop users, while offering backwards compatibility with Thunderbolt™ 3 and DisplayPort over USB-C® systems. Certification testing was performed at GRL’s Thunderbolt Authorized Test Center (ATC) in Taipei.

Thunderbolt™ 4 builds on the innovation of Thunderbolt™ 3 technology, to provide a truly universal cable connectivity experience. Thunderbolt 4 delivers consistent, 40Gbps (Gigabits per second) connection speeds, enabling users to simultaneously display 5K video, transmit SuperSpeed USB data, and charge their computer over one Thunderbolt 4 (or USB4) cable. It is the most comprehensive Thunderbolt specification yet, with compliance across the broadest set of industry-standards – including USB4, USB 3.2, DisplayPort and PCI Express – and is fully compatible with prior generations of Thunderbolt and USB products.

LG’s 40-inch UltraWide™ 40WP95C monitor (Source: LG Electronics)
LG’s 40-inch UltraWide™ 40WP95C monitor (Source: LG Electronics)

LG’s UltraWide™ 40WP95C monitor features a 21:9 aspect ratio, HDR (High Dynamic Range), Nano IPS™ technology for richer color expression at virtually any viewing angle, and 5K (5120×2160) resolution. The interfaces include 2 Thunderbolt™ 4 ports, a single DisplayPort, 2 HDMI ports, and 2 USB Type-A ports. One of the Thunderbolt 4 ports can deliver up to 96 Watts of power, so users can connect to the display and charge their computer without the need for a separate power cord.

"GRL has contributed to the success of many LG products, including the new UltraWide™ 40WP95C, by testing, certifying and publishing their compliance," said SangHyun Kim, IT Customer eXperience Department Leader for LG Electronics. "Based on their proven track record and our experience, we are confident that GRL will help us assure customers that LG’s current and future Thunderbolt™ products will deliver the performance and compatibility they expect."

"Since GRL was selected by Intel as the first Thunderbolt™ ATC in 2012, we have worked closely with Intel to help hundreds of companies to successfully adopt the latest Thunderbolt™ technology," said Holger Kunz, GRL’s President of Worldwide Services. "We are pleased that LG has chosen to leverage GRL’s technical expertise in Thunderbolt™, USB, USB Power Delivery, PCI Express and DisplayPort to ensure that their products meet rigorous compliance and interoperability requirements and capture a larger share of a fast-moving and extremely competitive market."

Thunderbolt™ is a trademark of Intel Corporation or its subsidiaries.

USB4®, USB Type-C®, USB are trademarks of USB Implementers Forum.

About?Granite?River Labs 

Founded in Silicon Valley in 2010, Granite River Labs (GRL) is a leading provider of end-to-end testing, certification and compliance services and related proprietary instrumentation and software solutions to support development and commercialization of sophisticated connected devices. GRL helps engineers solve tough design and validation challenges. GRL was founded with a vision to provide affordable test services to help hardware developers implement digital interface technologies as they become faster, more complex, and more challenging to test. GRL has worked with hundreds of companies supporting the adoption of new and emerging technologies from their worldwide test facilities and R&D centers. GRL’s combination of market-leading technical expertise, broad capabilities across connectivity and charging technologies, and intense focus on quality and customer service excellence has led to rapid growth and recognition as the "go to" expert. Through ongoing testing on retail devices using GRL testers, GTrusted serves as the electronics industry’s connectivity database, using a standardized framework to enable anyone to consistently determine proper device behavior. 

For more information, visit?


Vince is a tech geek, has a passion for sharing knowledge and loves to tinker with different gadgets. Whenever he gets a new gadget he just open the box and figure out how the gadget works without reading the manual.

Learn More →

Leave a Reply

Your email address will not be published. Required fields are marked *