 "578229-B21 HP P411 SAS Smart Array Controller" "Null"
 "Description:HP Smart Array P411 with 512MB Flash Backed CacheSAS Raid Controller. FBWC 2-Ports Ext PCIe x 8 SASPart Number(s)Manufacturer Part# 578229-B21"
 Specifications: Category Proliant Option Sub-Category Smart Array Controller Generation P411 256MB Part Number 578229-B21 Products ID 457965 Manufacturer HP Product Type Storage Controller (RAID) Interface PCI Express X8 Controller Interface Type Serial Attached SCSI Data Transfer Rate 300MB/s Buffer Size 256MB RAID Level 0 1 1+0 5 5+0 Form Factor Dual-profile Plug-in Card
 "HPE Smart Array P421/2GB with FBWC - storage controller (RAID) SATA 6Gb/s" " HPE 6Gb/s 631674-B21 RAID Controllers CDW.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." 