Your search for "brocade 300" revealed the following:
Brocade BR-340-0008 300 Series 24x 8G Fibre Channel SFP (16x Active) SAN Switch
SKU: NSH-9851
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
Dell Brocade DL-320-0005 300 Series 24x 8GB FC (16x Active) SAN Switch
SKU: NSH-6768
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
NEW Brocade DL-320-0001 24x 8GB Fibre Channel SFP (8x Active) SAN Switch
SKU: NSN-9700
Condition: New
Shipping: Overnight Options
Warranty: 365 days
NEW Brocade DL-320-0001 24x 8GB Fibre Channel SFP (8x Active) SAN Switch
SKU: NSN-9412
Condition: New
Shipping: Overnight Options
Warranty: 365 days
Extreme Brocade BR-SLX-9240-32C-AC-F 32x 100GB QSFP28 F-B Airflow Switch
SKU: NSB-4670
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
NEW Brocade FI-SX800-DC FastIron SX Series 8x Slot Switch Chassis Bundle
SKU: NSN-9066
Condition: New
Shipping: Overnight Options
Warranty: 365 days
NEW Brocade FESX624HF+2XG-PREM-DC 24x 1GB SFP 4x 1GB Combo 2x XFP (DC) Switch
SKU: NSN-1510
Condition: New
Shipping: Overnight Options
Warranty: 365 days
Brocade BR-VDX6730-24-F 24x 10GB SFP+ (24x Active) Front-to-Back Airflow Switch
SKU: NSH-7574
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
NEW Brocade ICX6610-24P-PE 24x 1GB PoE RJ45 8x 1GB SFP F-B Air (Premium) Switch
SKU: NSN-7875
Condition: New
Shipping: Overnight Options
Warranty: 365 days
Brocade ICX6610-48P-PI 48x 1GB PoE+ RJ45 8x 1GB SFP B-F Airflow (P) Switch
SKU: NSB-6310
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days