Your search for "jg307c" revealed the following:
HPE JG307C 3600 SI 48x Fast Ethernet PoE+ RJ45 4x 1GB SFP 2x 1GB Combo Switch
SKU: NSH-4710
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
$ 149.99
• Only 2 remaining
Call if you need more
NEW HPE JG307C 3600 SI Series 48x Fast Ethernet PoE+ 4x GE SFP 2x Combo Switch
SKU: NSN-2640
Condition: New
Shipping: Overnight Options
Warranty: 365 days