diff --git a/IDE/CRYPTOCELL/README.md b/IDE/CRYPTOCELL/README.md
index 5786f1ccf..534c56bf5 100644
--- a/IDE/CRYPTOCELL/README.md
+++ b/IDE/CRYPTOCELL/README.md
@@ -22,13 +22,15 @@ The `IDE/CRYPTOCELL/main.c` example application provides a function to run the s
 - SHA-256
 - AES CBC
 - CryptoCell 310 RNG
-- RSA sign/verify and RSA key gen
+- RSA sign/verify and RSA key gen (2048 bit in PKCSv1.5 padding mode)
 - RSA encrypt/decrypt
 - ECC sign/verify/shared secret
 - ECC key import/export and key gen pairs
 - Hardware RNG
 - RTC for benchmark timing source
 
+Note: All Cryptocell features are not supported. The wolfcrypt RSA API allows import and export of Private/Public keys in DER format. However, this is not possible keys generated with Cryptocell because the reconstruction of the imported keys has not been implemented.
+
 ## Setup
 ### Setting up Nordic SDK with wolfSSL
 1. Download the wolfSSL source code or a zip file from GitHub and place it under your SDK `InstallFolder/external/` directory. You can also copy or simlink to the source.