diff --git a/README.md b/README.md
index 145a9453..ea79c797 100644
--- a/README.md
+++ b/README.md
@@ -344,6 +344,7 @@ No modules.
 | <a name="input_secret_rotation_interval"></a> [secret\_rotation\_interval](#input\_secret\_rotation\_interval)                                                                | The interval to poll for secret rotation. This attribute is only set when `secret_rotation` is `true` and defaults to `2m`                                                                                                                                                                                                       | `string`                                                              | `"2m"`                      |    no    |
 | <a name="input_sku_tier"></a> [sku\_tier](#input\_sku\_tier)                                                                                                                  | The SKU Tier that should be used for this Kubernetes Cluster. Possible values are Free and Paid                                                                                                                                                                                                                                  | `string`                                                              | `"Free"`                    |    no    |
 | <a name="input_tags"></a> [tags](#input\_tags)                                                                                                                                | Any tags that should be present on the AKS cluster resources                                                                                                                                                                                                                                                                     | `map(string)`                                                         | `{}`                        |    no    |
+| <a name="input_ultra_ssd_enabled"></a> [ultra\_ssd\_enabled](#input\_ultra\_ssd\_enabled)                                                                                     | (Optional) Used to specify whether the UltraSSD is enabled in the Default Node Pool. Defaults to false.                                                                                                                                                                                                                          | `bool`                                                                | `false`                     |    no    |
 | <a name="input_vnet_subnet_id"></a> [vnet\_subnet\_id](#input\_vnet\_subnet\_id)                                                                                              | (Optional) The ID of a Subnet where the Kubernetes Node Pool should exist. Changing this forces a new resource to be created.                                                                                                                                                                                                    | `string`                                                              | `null`                      |    no    |
 
 ## Outputs
diff --git a/main.tf b/main.tf
index 7776cea0..227d6baa 100644
--- a/main.tf
+++ b/main.tf
@@ -55,6 +55,7 @@ resource "azurerm_kubernetes_cluster" "main" {
       os_disk_type                 = var.os_disk_type
       tags                         = merge(var.tags, var.agents_tags)
       type                         = var.agents_type
+      ultra_ssd_enabled            = var.ultra_ssd_enabled
       vnet_subnet_id               = var.vnet_subnet_id
       zones                        = var.agents_availability_zones
     }
@@ -78,6 +79,7 @@ resource "azurerm_kubernetes_cluster" "main" {
       os_disk_type                 = var.os_disk_type
       tags                         = merge(var.tags, var.agents_tags)
       type                         = var.agents_type
+      ultra_ssd_enabled            = var.ultra_ssd_enabled
       vnet_subnet_id               = var.vnet_subnet_id
       zones                        = var.agents_availability_zones
     }
diff --git a/variables.tf b/variables.tf
index 0d236804..5f0695ca 100644
--- a/variables.tf
+++ b/variables.tf
@@ -464,6 +464,12 @@ variable "tags" {
   default     = {}
 }
 
+variable "ultra_ssd_enabled" {
+  type        = bool
+  description = "(Optional) Used to specify whether the UltraSSD is enabled in the Default Node Pool. Defaults to false."
+  default     = false
+}
+
 variable "vnet_subnet_id" {
   type        = string
   description = "(Optional) The ID of a Subnet where the Kubernetes Node Pool should exist. Changing this forces a new resource to be created."