Amazon.co.jp: Silicone Power 256GB SSD 3D NAND A55 SLC Cache Performance Boost SATA III 2.5" 7mm (0.28") Internal Solid State Drive (SP256GBSS3A55S25) : Computers
SSD Cache: Is it worth it? We have it benchmarked here
SSD Cache – What Is It and Is It Worth It? | The WiredShopper