diff --git a/packages/aws-cdk-lib/aws-ec2/lib/instance-types.ts b/packages/aws-cdk-lib/aws-ec2/lib/instance-types.ts
index 53bf6b7fb32fd..4da2094aa8f63 100644
--- a/packages/aws-cdk-lib/aws-ec2/lib/instance-types.ts
+++ b/packages/aws-cdk-lib/aws-ec2/lib/instance-types.ts
@@ -596,6 +596,16 @@ export enum InstanceClass {
    */
   I4I = 'i4i',
 
+  /**
+   * Storage optimized instances powered by Graviton2 processor, 4th generation
+   */
+  STORAGE4_GRAVITON = 'storage4_graviton',
+
+  /**
+   * Storage optimized instances powered by Graviton2 processor, 4th generation
+   */
+  I4G = 'i4g',
+
   /**
    * Storage optimized instances powered by Graviton2 processor, 4th generation
    */
@@ -1291,6 +1301,8 @@ export class InstanceType {
       [InstanceClass.I3]: 'i3',
       [InstanceClass.IO3_DENSE_NVME_DRIVE]: 'i3en',
       [InstanceClass.I3EN]: 'i3en',
+      [InstanceClass.STORAGE4_GRAVITON]: 'i4g',
+      [InstanceClass.I4G]: 'i4g',
       [InstanceClass.STORAGE4_GRAVITON_NETWORK_OPTIMIZED]: 'im4gn',
       [InstanceClass.IM4GN]: 'im4gn',
       [InstanceClass.STORAGE4_GRAVITON_NETWORK_STORAGE_OPTIMIZED]: 'is4gen',