Seagate on Tuesday morning put out four pro drives targeted at both enterprise users and serious users, including a near record-setting SSD. The Pulsar.2 is billed as the first SSD using multi-level cell (MLC) in business and uses the denser storage to boost capacity, but without reducing its lifespan. It can hold as much as 800GB in its 2.5-inch form but can take as many as 15 petabytes of writes, or more than five years if its drive were completely rewritten 10 times every day.