This package NVMUpdate_Package_Silicom_205_1 is for updating fw for PE425G2i81-XR to PE425G2i81-XR-FU ver.4.50 ============================================================================================================== Operating System Support ======================== E810_NVMUpdatePackage_v4_50_EFI.tar.gz - for EFI x64 E810_NVMUpdatePackage_v4_50_ESX.tar.gz - for ESX x64 E810_NVMUpdatePackage_v4_50_FreeBSD.tar.gz - for FreeBSD x64 E810_NVMUpdatePackage_v4_50_Linux.tar.gz - for Linux x64 E810_NVMUpdatePackage_v4_50_Windows.zip - for Windows x64