DDR3 Desktop 240-pin DIMM Memory Module — 4GB or 8GB, 1333 / 1600 / 1866MHz, 1.5V

Available kit options: 1×4GB (4GB total), 2×4GB (8GB total), 1×8GB (8GB total), and 2×8GB (16GB total). These are DDR3 desktop memory modules in 240-pin DIMM form factor, operating at 1.5V. Frequency and PC3 ratings by capacity: - 4GB DDR3 — 1333MHz / PC3-10600 - 4GB DDR3 — 1600MHz / PC3-12800 - 4GB DDR3 — 1866MHz / PC3-14900 - 8GB DDR3 — 1333MHz / PC3-10600 - 8GB DDR3 — 1600MHz / PC3-12800 - 8GB DDR3 — 1866MHz / PC3-14900 Choose the capacity and speed combination that fits your desktop upgrade needs. Each option is a standard DDR3 module compatible with motherboards that accept 240-pin DIMMs and 1.5V memory.