PowerEdge servers. The U280 included support for high-bandwidth memory (HBM2) and high-performance server interconnect. In August 2019, Xilinx launched the Alveo U50, a low-profile adaptable accelerator with PCIe Gen4 support. The U55C accelerator card was launched in November 2021, designed for HPCC and big data workloads by incorporating the RoCE v2-based clustering solution, allowing for FPGA-based HPCC clustering to be integrated into existing data center infrastructures. In January 2019 K&L Gates, a law firm representing Xilinx sent a DMCA cease and desist letter to an EE YouTuber claiming trademark infringement for featuring the Xilinx logo next to Altera's in an educational video. Xilinx refused to reply until a video outlining the legal threat was published, after which they sent an apology e-mail. In January 2019, Baidu announced that its new edge acceleration computing product, EdgeBoard, was powered by Xilinx. Edgeboard is a part of the Baidu Brain AI Hardware Platform Initiative, which encompasses Baidu's open computing services, and hardware and software products for its edge AI applications. Edgeboard is based on the Xilinx Zynq UltraScale+ MPSoC, which uses real-time processors together with programmable logic. The Xilinx-based Edgeboard can be used to develop products like smart-video security surveillance solutions, advanced-driver-assistance systems, and next-generation robots. In February 2019, the company announced two new generations of its Zynq UltraScale+ RF system on chip (RFSoC) portfolio. The device covers the entire sub-6 GHz spectrum, which is necessary for 5G, and the updates included: an extended millimeter wave interface, up to 20% power reduction in the RF data converter subsystem compared to the base portfolio, and support of 5G New Radio. The second generation release covered up to 5 GHz, while the third went up to 6 GHz. As of February, the portfolio was the only adaptable radio platform single chip that had been designed to address the industry's 5G network needs. The second announcement revealed that Xilinx and Samsung Electronics performed the world's first 5G New Radio (NR) commercial deployment in South Korea. The two companies developed and deployed 5G Massive Multiple-input, Multiple-output (m-MIMO) and millimeter wave (mmWave) products using Xilinx's UltraScale+ platform. The capabilities are essential for 5G commercialization. The companies also announced collaboration on Xilinx's Versal adaptable compute acceleration platform (ACAP) products that will deliver 5G services. In February 2019, Xilinx introduced an HDMI 2.1 IP subsystem core, which enabled the company's devices to transmit, receive, and process up to 8K (7680