The ETERNUS JX40 is a reliable and innovative easy-to-use storage subsystem. As Direct Attached Storage (DAS), it extends the storage-capacity of Fujitsu's PRIMERGY servers through a fastest 6 Gbit/s SAS connection by up to 72 Terabyte. With a height of only two units per shelf, the ETERNUS JX40 subsystem meets the requirements for a compact design with 2.5 inch mixable SAS and SATA hard disk drives in 19-inch rack infrastructures.

Because of low investment cost and easy handling, storage, which is directly attached to a server, is an alternative for environments with only one to very few server systems. As a passive extension of server storage, ETERNUS JX40 is a perfect solution to grow the capacity e.g. for non-critical file-services or data of small branch offices. By using the server's SAS RAID controller, it offers basic data protection through mirroring, striping or adding parity information to the data in all relevant RAID groups.