These units are in great shape and arrive with a 1 year hardware warranty.
InfineraTAM-4-2.5G-A-TAM, 4 port 2.5g w/ 4x TOM-2.5G-SR1-A TOM SFP, 2.5G, Description
The Tributary Adapter Module 2.5G, referred to as TAM-4-2.5G, maps the customer client optical signalsinto internal electrical signals for subsequent transmission through the line module and/or TEM. Note: Unless specifically noted otherwise, all references to the “line module” will refer to either the DLM, XLM, ADLM, AXLM, and/or SLM interchangeably. All references to the “LM-80” will refer to the ADLM-80, AXLM-80, and/or SLM-80 interchangeably