Your search for "meraki power adapter" revealed the following:
NEW Cisco C9300-24T-E Catalyst 9300 24x 1GB RJ45 1x Module Slot Switch
SKU: NSN-1724
Condition: New
Shipping: Overnight Options
Warranty: 365 days
NEW Cisco C9300-24UXB-E Catalyst 9300 24x MultiGB UPoE RJ45 1x Mod Slot Switch
SKU: NSN-8264
Condition: New
Shipping: Overnight Options
Warranty: 365 days
NEW Cisco C9300L-24UXG-2Q-E 24x 1GB UPoE RJ45 (8x MultiGB) 2x QSFP+ Switch
SKU: NSN-6538
Condition: New
Shipping: Overnight Options
Warranty: 365 days