Lenovo TDSourcing 3Gb SAS HBA Controller v2 - Storage controller (RAID) - 8 Channel - SATA 3Gb/s / SAS low profile - 3 Gbit/s - RAID 0/ 1/ 1E - PCIe x8 - refurbished - for Lenovo System x3250 M3/ x3550 M2/ x3620 M3/ x3650 M2