Powershell split cert to pem

##$thumb=""
$thumb = (Get-ChildItem Cert:\LocalMachine\My\|select subject,notafter,thumbprint | ogv -PassThru ).thumbprint

$cert=Get-ChildItem Cert:\LocalMachine\My\$thumb
##Public key
$CertBase64 = [System.Convert]::ToBase64String($cert.RawData, [System.Base64FormattingOptions]::InsertLineBreaks)
## Private key
$RSACng = [System.Security.Cryptography.X509Certificates.RSACertificateExtensions]::GetRSAPrivateKey($cert)
$KeyBytes = $RSACng.Key.Export([System.Security.Cryptography.CngKeyBlobFormat]::Pkcs8PrivateBlob)
$KeyBase64 = [System.Convert]::ToBase64String($KeyBytes, [System.Base64FormattingOptions]::InsertLineBreaks)

## Build pem files
$Pemkey = @"
-----BEGIN PRIVATE KEY-----
$KeyBase64
-----END PRIVATE KEY-----
"@
$Pemcert = @"
-----BEGIN CERTIFICATE-----
$CertBase64
-----END CERTIFICATE-----
"@
## Export
$pemkey | out-file -filepath .\PEMkey.key
$pemcert | out-file -filepath .\PEMcert.crt