Your search for "Brocade OC12" revealed the following:
NEW Juniper P-1CHOC12SMIR-QPP M Series 1x Channelized OC12 Router Module
SKU: NSN-5167
Condition: New
Shipping: Overnight Options
Warranty: 365 days
Juniper MIC-3D-4CHOC3-2CHOC12 MX Series 4x Channelized OC3/2 Router Module
SKU: NSH-5657
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
NEW Cisco A900-IMA4OS ASR 900 Series 4x OC3/STM1 or 1x OC12/STM4 Router Module
SKU: NSN-5573
Condition: New
Shipping: Overnight Options
Warranty: 365 days
Ruckus ICX7000-C12-RMK Brocade ICX 7150 Compact Switch Rack Mount Kit
SKU: NSB-9068
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
Juniper MIC-3D-4COC3-1COC12-CE Circuit Emulation Router Module w/ SFP
SKU: NSB-0237
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days