Your search for "al1905a3b-e6" revealed the following:
Extreme AL1905A3B-E6 ERS 5900 PoE 1000-1400W 100-240V AC B-F Switch Power Supply
SKU: NSH-9436
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
$ 239.99
• Only 2 remaining
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NEW Extreme AL1905A3B-E6 ERS 5900 PoE 1000-1400W AC B-F Switch Power Supply
SKU: NSN-3877
Condition: New
Shipping: Overnight Options
Warranty: 365 days