For Mister SDRAM XS-D v2.9 board for Mister FPGA Product size: 5 x 2.3 x 0.7cm Weight: 8g This Extra Slim (XS-D) v2.9 board provides 128MB of SDR SDRAM memory for cores requiring a large ( 512KB) of memory including the core. Although the DE10-Nano has built in DDR3 RAM, it has a high latency and is not suitable for the timings required of retro EDO DRAM. So if a core requires precise memory timings, then the onboard DDR3 cannot be used. You can be confident knowing each 128MB SDRAM Extra Slim (XS-D) v2.9 board has been tested for over an hour at 130 MHz with the Mister MemTest Utility (126MHz is the fastest any current core needs). Also each memory module is then soak tested with Jotego's 48MHz and 96MHz SDRAM test cores. Finally live tests are performed with the core, Archimedes () core, Advance core, CD core and in games including Metal 3 and the Bad demo which require a 128MB module to play, these extensive tests ensures no issues are present. Suitable For Terasic DE10-Nano FPGA Board 128MB SDRAM memory module Play System Compatible (-1/1.5 & -2.0) Enjoy all games Alliance Memory AS4C32M16SB-7TIN Chips for MiSTer IO Board Compatible Fully Assembled & Tested The appearance and color of products from different batches , which does not affect their use Colour:blue Material:PCB Package Contents: 1 x SDRAM 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.