diff --git a/microsoft-365/backup/backup-overview.md b/microsoft-365/backup/backup-overview.md
index debc94a426d..d39b4ffa603 100644
--- a/microsoft-365/backup/backup-overview.md
+++ b/microsoft-365/backup/backup-overview.md
@@ -109,6 +109,8 @@ The following table summarizes expected performance for a normally distributed t
*Single protection unit OneDrive and SharePoint restores using express restore points can take on average between 10 minutes and 120 minutes.
+**Exchange Online performance times based on an average sized mailbox of 26K items and a size of 10 GB. Actual times will depend on the number and size of the items in each mailbox. For a single mailbox, restore times typically fall in the 200 - 300 item/minute range.
+