Your search for "Brocade 300" revealed the following:
NEW Extreme Brocade BR-MLX-MR2-X MLX Router System Management Module
SKU: NSN-2479
Condition: New
Shipping: Overnight Options
Warranty: 365 days
Brocade BR-6510-48-16G-F 6510 Series 48x 16G FC SFP+ (48x Active) SAN Switch
SKU: NSB-6928
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
Brocade BR-6510-24-8G-R 48x 8 Gigabit Fibre Channel SFP+ (24x Active) SAN Switch
SKU: NSH-7817
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
Brocade BR-VDX6720-60-R 60x 10GB SFP+ (20x Active) Back-to-Front Airflow Switch
SKU: NSH-7530
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
Brocade BR-6510-24-16G-F 48x 16GB Fibre Channel SFP+ (24x Active) SAN Switch
SKU: NSB-6161
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
Brocade E1MG-BXD 1GB BASE-BXD 1310nm SMF LC SFP Transceiver
SKU: NSH-3437
Condition: Seller refurbished
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 Brocade 23-0000067-01 DCX 8510 Series 2000W AC SAN Switch Power Supply
SKU: NSN-9096
Condition: New
Shipping: Overnight Options
Warranty: 365 days
NEW Brocade FCX624S-ADV 24x 1GB RJ45 4x 1GB Combo Advanced Switch
SKU: NSN-6889
Condition: New
Shipping: Overnight Options
Warranty: 365 days
Brocade BR-6510-24-8G-F 6510 48x 8G Fibre Channel SFP+ (24x Active) SAN Switch
SKU: NSB-6927
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days