Based on this product's specifications, here are some alternatives and similar models
Memory module MicroBattery MMG2267/2048 2GB DDR2 533MHz ECC
Summary description:
MicroBattery MMG2267/2048 is a 2GB DDR2 memory module operating at 533MHz with ECC support. Designed for systems that require error-correcting memory, this DIMM provides single-module capacity of 2GB and DDR2 interface compatibility. Suitable for server or workstation upgrades where ECC stability and legacy DDR2 support are needed.