Thus an EDSFF E1. S SSD becomes an PCI-E SSD, which can be used in IoT, data center and server area.. This converter enables the connection of a GEN-Z SSD in E1. S. Fit for 9.5 mm & 15mm & 25mm thickness SSD with heat sink. like PM9A3 PM9D3 P5801X). The converter can be installed into your system internally through the PCI-E 4X interface.. Compliant with PCI Express 4.0. No driver installation is required. Most of the latest operating systems support PCIe-NVMe SSDs.. EDSFF offers a dynamic range of form factors that have advantages vs the incumbent SSD form factors in capacity, scalability, performance, serviceability, manageability, thermal and power management.