IBM provides a variety of high IOPS modular adapters for use with the System x product family servers.
The server supports several High IOPS Modular Adapters to cover a broad range of needs. If you need to verify that an adapter is compatible with the server, go to http://www.ibm.com/systems/info/x86servers/serverproven/compat/us/indexsp.html.
The IBM High IOPS Modular Adapters documentation is available at http://www.ibm.com/support/entry/portal/docdisplay?lndocid=MIGR-5092804.