Availability Notice, 2026-10-13: We are expecting new stock of the DDR5 SPD I2C Adapter within 1 week. All orders placed now will be shipped as soon as our stock arrives.

The DDR5 adapter plank makes it easy to read and write the SPD chip on DDR5 UDIMM and SODIMM computer memory modules.

Use the Bus Pirate ddr5 command to read and write the SPD EEPROM on a DDR5 module, or follow the DDR5 device demo to learn about the technical details.

DDR5 adapter plank features:

• 288 pin DDR5 UDIMM socket for standard desktop memory modules
• 262 pin DDR5 SODIMM socket for laptop memory modules
• Accepts a single 5 volt power supply
• A 3.3 volt regulator supplies the I2C and PWR_EN pins
• A level shifter ensures the I2C pins HSDA and HSCL are never more than 3.3 volts
• HSA is pulled to ground to put the module in offline mode
• PWR_GOOD is connected to an LED indicator that lights when the PMIC reports a voltage error