For Terasic DE10nm FPGA board. 128MB SDRAM memory module playback system compatible (-1/1.5 and -2.0). Enjoy all for NEO games Union memory AS4C32M16SB-7TIN chip Mr.IO Fully assembled and tested Product weight: 10g This ultra-thin (XS-D) v2.9 board provides 128MB of SDR SDRAM memory for cores requiring large ( 512KB) memory, including for cores. Although the for DE10 Nano has built-in DDR3 RAM, it has high latency and is not suitable for the timing required by retro for EDO DRAM. So if the core needs precise memory timing, onboard DDR3 cannot be used. You can confidently know that each 128MB SDRAM Ultra Thin (XS-D) v2.9 board has been tested with the for Mister MemTest utility at 130 MHz for over an hour (126MHz is the fastest speed required for current cores). Additionally, each memory module will be soak tested using for Jotego's 48MHz and 96MHz SDRAM test cores. Finally, field tests were performed on for core, for Archimedes core, for Advance core, for CD core and for games, including for Metal 3 and for Bad 's demo, these extensive tests there are no issues. Due to different product batches, the appearance may be different, which does not affect use. Colour:Blue Material:PC+Metal Size:50x23x7mm/1.97x0.91x0.28in Package Contents: 1 * Memory Module Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.