Sun 370-4155 256MB Mezzanine Memory Board, designed for Netra T1 platform expansion. Form factor: mezzanine card installation. Capacity: 256MB SDRAM. Integrates into Netra T1 carrier board slots to increase system memory capacity for network appliance deployments. Compatible with Sun Netra T1 systems and derivatives. Typical applications include carrier-class networking, telecommunications infrastructure, and edge computing environments where modular memory expansion is required. This refurbished module has been tested and guaranteed to meet original specifications and is available via quote.