HP 631671-B21 SAS SATA Adapter
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631671-B21 HP Smart Array P420 6GBPS 2-Ports PCI-E 3.0 X8 Bulk

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Part Number#: 631671-B21
List Price was: $118.60
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Short Description:
631671-B21 Smart Array P420 6 Gigabytes Per Second (GBPS) 2-Ports Int Peripheral Component Interconnect Express (PCIE) 3.0 X8 Serial-Attached SCSI (SAS) Serial Advanced Technology Attachment (SATA) Raid Controller with 2 Gigabyte(GB) Flash-Backed Write Cache (FBWC) | Made by HP | New Bulk Pack
Product Condition:
New Bulk Pack
Warranty provided by ALLHDD.COM:
30 Days

Key Features of the P420 Controller

  • 6Gbps SAS/SATA interface: The P420 controller supports data transfer rates of up to 6Gbps, allowing for fast and efficient data transfer.
  • Dual-port design: The controller features two SAS/SATA ports, providing redundancy and failover capabilities.
  • PCI-E 3.0 x8 interface: The controller connects to the motherboard through a PCI-E 3.0 x8 interface, providing high-speed data transfer and low latency.
  • RAID support: The controller supports RAID levels 0, 1, 5, 6, 10, 50, and 60, providing flexibility and data protection.
  • Flash-backed write cache (FBWC): The controller features an on-board cache module with a battery backup, providing data protection in case of power loss.
  • SAS expanders support: The controller supports SAS expanders, allowing for easy expansion of storage capacity.
  • Online RAID level migration: The controller allows for online migration of RAID levels without the need for data backup and restore.
  • Advanced data protection: The controller includes advanced data protection features such as RAID 6 ADG, RAID 60, and Advanced Data Guarding.
  • Easy management: The controller includes HP Smart Storage Administrator (SSA) for easy management and monitoring of storage arrays.
  • Compatible with HP ProLiant servers: The controller is compatible with HP ProLiant Gen8 and Gen9 servers, allowing for easy integration into existing HP server environments.

RAID Levels Supported by the P420

The HP 631671-B21 Smart Array P420 6GBPS 2-Ports PCI-E 3.0 X8 SAS/SATA Raid Controller FBWC supports the following RAID levels:

  • RAID 0 (Striping)
  • RAID 1 (Mirroring)
  • RAID 1+0 (Mirrored Stripe)
  • RAID 5 (Parity)
  • RAID 6 (Double Parity)
  • RAID 50 (Striped Parity)
  • RAID 60 (Striped Double Parity)
  • RAID ADG (Advanced Data Guarding)
  • RAID 1 ADM (Advanced Data Mirroring)
  • RAID 10 ADM (Advanced Data Mirroring & Stripe)
  • RAID 10 ADM 2 (Advanced Data Mirroring & Stripe with 2 mirrored copies)
  • RAID 5 ADG (Advanced Data Guarding Parity)
  • RAID 6 ADG (Advanced Data Guarding Double Parity)
  • RAID 50 ADG (Advanced Data Guarding Striped Parity)
  • RAID 60 ADG (Advanced Data Guarding Striped Double Parity)

SAS and SATA Connectivity options

The HP 631671-B21 Smart Array P420 6GBPS 2-Ports PCI-E 3.0 X8 SAS/SATA Raid Controller FBWC offers both SAS and SATA connectivity options. It has two SAS ports that support 6Gbps data transfer rates and can connect to SAS or SATA hard drives or SSDs. Additionally, it also has a PCI-E 3.0 x8 interface that connects to the motherboard to provide high-speed data transfer. This controller also includes Flash Backed Write Cache (FBWC) technology that provides faster write performance and data protection in case of power failure.

General Information

  • Manufacturer Name: HP
  • MPN: 631671-B21
  • Spare Part Number: 633538-001
  • SKU: 631671-B21
  • Device Type: FBWC Smart Array Storage (RAID) Controller
  • Memory Size: 2 GB
  • Form Factor: Plug In Card
  • Designation: Servers
  • Host Interface: PCI Express 3.0 x8
  • Data Backup Type: Flash Backed Cache
  • Card Height: Low-Profile
  • Number of Logical Drive Supported: 64

Storage Controllers:

  • Interface: SATA 6Gbps / SAS 6Gbps
  • Data Transfer Rate: 6 Gb/sec
  • Buffer Size: 2 GB
  • Supported Devices: Hard Drive, Disk Array (RAID)
  • Channel Qty: 8
  • RAID Level: RAID 0, RAID 1, RAID 5, RAID 10, RAID 50

Expansion / Connectivity

  • Interfaces: 2 x SATA 6Gb/s / SAS 6Gb/s - 36 pin 4i Mini MultiLane SAS (SFF-8087) ( internal ) 2 x SATA 6G
  • Compatible Slots: 1 x PCI Express 3.0 x8

Interfaces / Ports

  • Total Number of SAS Ports: 2

Product Dimensions:

  • Width: 2.20 inch
  • Depth: 9.50 inch
  • Height: 7.50 inch


  • Compliant Standards: WEEE

Software / System Requirements:

  • OS Required: Microsoft Windows Server 2008 x86 Edition, SuSE Linux Enterprise Server 11, SuSE Linux Enterprise Server 10, Microsoft Windows Server 2003 x64 Edition, Red Hat Enterprise Linux 5, Microsoft Windows Server 2008 x64 Edition, Red Hat Enterprise Linux 6, Red Hat Enterprise Linux 5 x64 Edition, SuSE Linux Enterprise Server 10 x64 Edition, SuSE Linux Enterprise Server 11 x64 Edition

Compatibility Information

  • HPE ProLiant DL Series: DL160 Gen8, DL160 Gen8 Entry, DL160 Gen8 Performance, DL320e Gen8, DL320e Gen8 Base, DL320e Gen8 Entry, DL320e Gen8 Performance, DL380e Gen8, DL380p Gen8, DL380p Gen8 Base, DL380p Gen8 Entry, DL380p Gen8 High Performance, DL380p Gen8 Special, DL385p Gen8, DL385p Gen8 Dedicated Workload, DL385p Gen8 Entry, DL385p Gen8 Maximized Consolidation, DL385p Gen8 Storage, DL560 Gen8, DL560 Gen8 Base, DL560 Gen8 Entry, DL560 Gen8 Performance
  • HPE ProLiant ML Series: ML310e Gen8, ML310e Gen8 Base, ML310e Gen8 Entry, ML310e Gen8 Performance, ML310e Gen8 v2, ML310e Gen8 v2 Base, ML310e Gen8 v2 Enty, ML310e Gen8 v2 Performance, ML350e Gen8, ML350e Gen8 Base, ML350e Gen8 Entry, ML350e Gen8 Performance, ML350e Gen8 v2, ML350p Gen8
  • HPE ProLiant SL Series: SL210t Gen8 1U Node, SL250s Gen8 2U Left Half Width Tray, SL250s Gen8 2U PCIe Gen3 Left Tray, SL250s Gen8 2U Right Half Width Tray, SL250s Gen8 Base 2U Left Half Width Tray, SL250s Gen8 Base 2U Right Half Width Tray, SL270s Gen8 1U Left Half Width Tray, SL270s Gen8 1U Right Half Width Tray, SL270s Gen8 Base 4U Left Half Width Tray, SL270s Gen8 Base 4U Right Half Width Tray, SL270s Gen8 SE 4U Left Tray, SL270s Gen8 SE 4U Right Tray
Product Condition:
New Bulk Pack
Warranty provided by ALLHDD.COM:
30 Days

About New Bulk Pack Products

New Bulk Pack products come with clamshell boxes and do not have any manufacturer warranty. Many times manufacturers disassemble whole units to use parts or pulled from a new system. Typically, this product doesn't come with software or instructions unless indicated and no Manufacturer’s genuine warranty. You can take note these are not brand new products.

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