QNAP 4GB DDR3L 1600 MHz SO-DIMM Memory Module (RAM-4GDR3LA0-SO-1600)Boost your storage system's capabilities with the 4GB DDR3L 1600 MHz SO DIMM Memory Module from QNAP. Delivering speeds up to 1600 MHz, this module is a memory upgrade designed to improve your system's overall responsiveness and ability to handle data intensive applications. It supports operation at both 1. 5V & 1. 35V and works on systems with a DDR3L enabled chip. Applied Models: TS x53Be, TS x53B, TS x53BU, TS 453BT3, TS 351