Your search for "jg394a" revealed the following:
HPE JG394A FlexNetwork 10500 Series 24x 10GB Copper Switch Module
SKU: NSH-9682
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
$ 1,844.99
• Only 2 remaining
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NEW HPE JG394A FlexNetwork 10500 24x 10 Gigabit Ethernet RJ45 Switch Module
SKU: NSN-3724
Condition: New
Shipping: Overnight Options
Warranty: 365 days
$ 1,868.99
• Only 1 remaining
Call if you need more