SK hynbix Unbuffered Small Outline DDR3L SDRAM DIMMs (Unbuffered Small Outline Double Data Rate Synchronous DRAM Dual In-Line Memory Modules) are low power, high-speed operation memory modules that use DDR3L SDRAM devices. These Unbuffered DDR3L SDRAM SODIMMs are intended for use as main memory when installed in systems such as mobile personal computers. Hynix Original.