Acer Hard Disk Drives deliver top reliability, flexibility, performance & technologies to enterprise customers. Offering both 2.5" & 3.5" form factors in three drive typess ATA, SAS & SSD? Acer servers with certified HDDs will protect your information assets. 3.5" SATA II (Serial ATA) drives (7, 200rpm) offer the most gigabytes per dollar, use less power & provide a greater maximum capacity compared to enterprise SAS/SATA drives. These drives are ideal for large data centers, web service providers, & businesses requiring huge amounts of storage with limited budget & power allotment.