Based on this product's specifications, here are some alternatives and similar models
2-Power 4GB DDR3 1066MHz SoDIMM Memory 1x4GB CAS9
Summary description:
The 2-Power 4GB DDR3 1066MHz SoDIMM Memory is designed for laptops, featuring a memory layout of 1x4GB, DDR3 type, and a clock speed of 1333 MHz with CAS latency of 9. This memory module is a reliable upgrade for improved performance in compatible devices.