Your search for "jg305a" revealed the following:
HPE JG305A 3600 SI Series 48x FE RJ45 2x 1GB RJ45 4x 1GB SFP Switch
SKU: NSH-3817
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
$ 609.99
• Only 2 remaining
Call if you need more
NEW HPE JG305A 3600 SI Series 48x FE RJ45 2x 1GB RJ45 4x 1GB SFP Switch
SKU: NSN-2013
Condition: New
Shipping: Overnight Options
Warranty: 365 days
$ 636.99
• Only 1 remaining
Call if you need more