The HP 538696-B21-HIGH model denotes the high-profile bracket variant of the HP NC375T PCI Express Quad Port Gigabit Ethernet Adapter, tailored for standard-size server slots. This adapter delivers the same high-performance, scalable network connectivity as the standard NC375T model, with the added capability to fit into larger expansion slots typically found in full-size servers and workstations. It features four integrated Gigabit Ethernet ports, enabling significant network throughput and redundancy improvements without the need for multiple adapters. Designed for multipurpose environments, it supports advanced features such as teaming for increased bandwidth, failover for higher availability, and VLAN support for improved network segmentation and security. This high-profile version is particularly suited for enterprises aiming to enhance their network infrastructure with minimal hardware investment.