4GB DDR3 1600 (PC3-12800R) REG VLP Server Memory — for 90Y3154 / 90Y3148 / 47J0164

Compatible replacement module for server part numbers 90Y3154, 90Y3148 and 47J0164. This 4GB DDR3 1600 memory is a registered (REG) PC3-12800R module in a very low profile (VLP) form factor, built for space-constrained server systems that require registered VLP DIMMs. Key specifications: - Capacity: 4GB - Memory type: DDR3 - Speed: 1600 (PC3-12800R) - Module: REG (Registered) - Form factor: VLP (Very Low Profile) - Compatible FRUs/Models: 90Y3154, 90Y3148, 47J0164 Use this module when upgrading or replacing server memory that specifies 4GB DDR3 1600 PC3-12800R registered VLP modules.