TEL Tokyo ElectronModel: TYB421-1/INL1D81-000131-17Terminal PCB Unity II Plasma Etcher Assembly 06-000131-11 The TEL Tokyo Electron TYB421-1/INL appears to be an interface PCB used in the Unity II Plasma Etcher U2-855DD 200mm System made by TEL Tokyo Electron.**Selling as is basis due to some components is damaged.**No returnNo refundHave some marks and scratches due to old stock© All the pictures are Organic and this part is physically in our stock