Your search for "48ywn" revealed the following:
Dell 48YWN PowerEdge VRTX 8x 1GB RJ45 I/O Server Module
SKU: NSH-6199
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 90 days
$ 72.99
• 37 in stock
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NEW Dell 48YWN PowerEdge VRTX 8x 1GB RJ-45 I/O Server Module
SKU: NSN-9617
Condition: New
Shipping: Overnight Options
Warranty: 90 days