SimpleTech is a leading independent provider of standard and custom memory solutions, with products based on dynamic random access memory, or DRAM, static random access memory, or SRAM, and Flash memory technologies, such as CompactFlash. The company designs, manufactures and markets a comprehensive line of over 2, 500 memory, storage and connectivity products used in high performance computing, networking and communications, consumer electronics and industrial applications.??This memory is designed for Sony PCV-RX370DS Digital Studio P4 PC800 RDRAM; Sony PCV-RX380DS Digital Studio P4 PC800 RDRAM; Sony PCV-RX462DS Digital Studio 1.3Ghz P4 PC800 RDRAM; Sony PCV-RX463DS Digital Studio 1.4GHz P4 PC800 RDRAM; Sony PCV-RX470DS Digital Studio P4 PC800 RDRAM; Sony PCV-RX480DS Digital Studio P4 PC800 RDRAM; Sony PCV-RX490TV Digital Studio P4 PC800 RDRAM; Sony PCV-RX370 128MB RDRAM Memory Kit; Sony VAIO PCV-RX690G 2.2GHz P4.