Your search for "PWR-ME3KX-DC" revealed the following:
Cisco PWR-ME3KX-DC DC Power Supply for ME ME 3600X / 3800X Series Switches
SKU: NSH-3008
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
$ 133.99
• Only 2 remaining
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NEW Cisco PWR-ME3KX-DC DC Power Supply for ME ME 3600X / 3800X Series Switches
SKU: NSN-1453
Condition: New
Shipping: Overnight Options
Warranty: 365 days