Samsung 840 EVO SSD review - SSD Performance Crystal DiskMark
Samsung 840 EVO 500GB SSD Review - Legit Reviews
Amazon.com: New A+ Samsung SSD HDD 840 PRO 2.5" 7mm 128GB MZ-7PD128BW MZ7PD128HCFV-1BW00 0Z000 SATA 3.0 6.0Gb/s MLC Hard Disk Solid State Drive Laptop : Electronics