 "HPE Smart Array P421/2GB with FBWC - storage controller (RAID) SATA 6Gb/s" " HPE 6Gb/s 631674-B21 RAID Controllers CDWG.com
"The HPE Smart Array P421 Controller is a low profile, 6 Gb/s, PCIe 3.0, Serial Attached SCSI (SAS) RAID controller that provides enterprise class, storage performance, maximum external scalability, and data protection for select HP ProLiant Gen8 rack and tower servers. It features eight external SAS ports and delivers increased server uptime by providing advanced storage functionality, including online RAID level migration (between any RAID levels) with flash back write cache, global online spare, and pre-failure warning. Data Compatibility among all models of Smart Array controllers allows simple and easy migration at any time when needs for higher performance, capacity, and availability increase. Even new generations of Smart Array controllers can understand the data format of previous generations of Smart Array controllers." 
 "432103-B21 HP Smart Array P600/512 Controller", "Null" Price 432103-B21" "New 432103-B21 Controller Wholesale
"Description:HP Smart Array P600/512 BBWC Controller  Factory Integrated OnlyPart Number(s)Manufacturer Part# 432103-B21" 
 Specifications: Category Proliant Controller Sub-Category Smart Array Generation P600/512 Part Number 432103-B21 Products ID 458106 Manufacturer HP Product Type RAID Storage Controller Host Interface PCI Express 2.0 x 8 Controller Interface Type Serial ATA-150 SAS Data Transfer Rate 300MB/s Buffer Size 512MB RAID Level 0, 1, 5, 6, 10 Drive Support 38 Memory 512MB Form Factor Plug-in Card