Your search for "ma-mnt-mr-10" revealed the following:

NEW Cisco Meraki MA-INJ-4-US 802.3at PoE+ Injector 30W US Plug

SKU: NSN-9286
Condition: New
Shipping: Overnight Options
Warranty: 365 days

Cisco Meraki ANT-10 5/7 dBi Dual Band Omni Antenna

SKU: NSB-3582
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days