Your search for "NME-UMG-EC" revealed the following:

NEW Cisco NME-UMG-EC UCS Enhanced-Capacity Unified Messaging Gateway Module

SKU: NSN-7478
Condition: New
Shipping: Overnight Options
Warranty: 365 days

Cisco NME-UMG-EC UCS Enhanced-Capacity Unified Messaging Gateway Network Module

SKU: NSH-5762
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days