QUSIDE PCIe Series by Quside is a family of quantum random number generators with a PCI Express interface. It provides high-quality, measurable randomness at high speed, supporting demanding crypto algorithms for classical, post-quantum, and QKD. The PCIe Series is available in a low-profile form factor for 100 Mb/s and 1 Gb/s and in full PCIe size for 400 Mb/s. It features a standard PCIe Gen2x4 form factor for easy deployment in any standard PC and server. Real-time updates on the quality of generated entropy provide actionable insights. Versatile drivers and libraries for C and Python are available for Linux OS for easy integration into applications.