Your search for "brocade 300" revealed the following:

NEW Extreme Brocade BR-MLX-10GX4-X MLX Series 4x 10GB XFP Router Module

SKU: NSN-2555
Condition: New
Shipping: Overnight Options
Warranty: 365 days

Extreme Brocade BR-MLX-40Gx4-M ExtremeRouting MLX 4x 40GB QSFP+ Router Module

SKU: NSH-4776
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days

NEW Extreme Brocade BR-MLX-32-MR2-M ExtremeRouting MLX Router Management Module

SKU: NSN-7991
Condition: New
Shipping: Overnight Options
Warranty: 365 days

NEW Brocade ICX6610-48-E 48x 1GB RJ45 8x 1GB SFP F-B Airflow (Base) Switch

SKU: NSN-7878
Condition: New
Shipping: Overnight Options
Warranty: 365 days

NEW Extreme Brocade BR-SLX-9240-32C-AC-F 32x 100GB QSFP28 F-B Airflow Switch

SKU: NSN-3851
Condition: New
Shipping: Overnight Options
Warranty: 365 days

NEW Extreme Brocade BR-MLX-10GX20-X2 MLX Series 20x 10GB (X2) SFP+ Router Module

SKU: NSN-2350
Condition: New
Shipping: Overnight Options
Warranty: 365 days

NEW Ruckus Brocade ICX7250-24P-2X10G 24x 1GB PoE+ RJ45 8x SFP S-B Air Switch

SKU: NSN-7911
Condition: New
Shipping: Overnight Options
Warranty: 365 days

NEW Extreme Brocade BR-SLX-9140-48V-AC-R 48x 25 SFP28 6x QSFP28 B-F Air Switch

SKU: NSN-4589
Condition: New
Shipping: Overnight Options
Warranty: 365 days

NEW Extreme Brocade BR-SLX-9140-48V-AC-F 48x 25GB SFP28 6x QSFP28 F-B Air Switch

SKU: NSN-3852
Condition: New
Shipping: Overnight Options
Warranty: 365 days

Extreme Brocade BR-MLXE-4-MR2-M-AC 4x Slot MLXe-4 AC Router Chassis

SKU: NSB-6357
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days