Your search for "D4PCIUF" revealed the following:
Dialogic D4PCIUF 881-775-50 D4PCIUF Media Voice Fax Board Module
SKU: NSH-5027
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
$ 214.99
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New Dialogic D4PCIUF 881-775-50 D4PCIUF Media Voice Fax Board Module
SKU: NSN-8159
Condition: New
Shipping: Overnight Options
Warranty: 365 days
NEW Dialogic D/4PCIUFW JCT Media Family PCI 4x Analog Port Voice Fax Board
SKU: NSN-4884
Condition: New
Shipping: Overnight Options
Warranty: 365 days
NEW Dialogic D4PCIUFW 4x RJ-11 Phone Line Media Voice Fax Board
SKU: NSN-5029
Condition: New
Shipping: Overnight Options
Warranty: 365 days