Your search for "dps-750ab-15" revealed the following:
Dell DPS-750AB-15 A 750W AC 80 Plus Platinum Power Supply for R630 R730 T630
SKU: NSB-8453
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
$ 39.99
• 44 in stock
Call if you need more
NEW Dell DPS-750AB-15 A 750W AC 80 Plus Platinum Power Supply for R630 R730 T630
SKU: NSN-1249
Condition: New
Shipping: Overnight Options
Warranty: 365 days
$ 241.99
• Only 2 remaining
Call if you need more
Dell DPS-750AB-15 C Multiple Compatibility 750W AC Server Power Supply
SKU: NSB-8452
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days