This item, 631670-B21, is the HPE option part number for the product described as Smart Array P420/1GB FBWC 6Gb 2-ports Int SAS Controller. Further details below.
This HPE Smart Array P420 internal SAS controller delivers enhanced performance and data protection for your server environment. Equipped with a 1GB Flash Backed Write Cache (FBWC) and supporting 6Gb/s SAS technology, this item accelerates application performance and improves overall system responsiveness. It supports RAID levels 0, 1, 10, 5, 50, 6, and 60, offering flexible data redundancy options.
This plug-in card connects via PCI Express 3.0 x8, facilitating rapid data transfer. Compatible servers include but are not limited to the HPE ProLiant DL380p Gen8, DL360e Gen8, DL380e Gen8, DL385p Gen8, DL560 Gen8, DL160 Gen8, DL320e Gen8, ML350p Gen8, ML350e Gen8, ML310e Gen8, ML310e Gen8 v2, SL270s Gen8, and SL250s Gen8. Supporting up to 64 logical drives, this drive provides robust storage management capabilities for demanding workloads.
HPE Option Part #: 631670-B21
HPE Spare Part #: 633538-001
HPE Assembly Part #: 610670-003
PRODUCT SPECIFICATIONS FOR 631670-B21:
- Host Interface: PCI Express 3.0 x8
- Controller Type: 6Gb/s SAS
- RAID Supported: Yes
- RAID Levels 0, 1, 10, 5, 50, 6, 60
- Data Backup Type: Flash Backed Cache
- Total Number of SAS Ports: 2
- Number of SAS Ports (Internal): 2
- Form Factor: Plug-in Card
- Platform Supported: PC
- Number of Logical Drive Supported: 64
- RAM: 1024 MB DDR3
- Memory Speed: 1333 MHz
- Weight: 1 pounds
- Product Dimensions: 9 x 8 x 2 inches
RESOURCES FOR 631670-B21
Quickspecs for 631670-B21COMPATIBLE WITH:
PROLIANT DL SERIES
PROLIANT ML SERIES
PROLIANT SL SERIES
** This list may not be complete. Contact us via Live Chat if you have any questions about compatibility.
HPE PARTSURFER INFO FOR 631670-B21
| Spare PN | Description | |
|---|---|---|
 | 660093-001 | Capacitor pack with 914mm (36 in) cable. For use with 512MB/1GB/2GB cache module - Provides back up power to the flash-based write cache (FBWC) memory module for up to 80 seconds in the event of a system power failure. For use with Smart Array controllers |
| 633538-001 | Smart Array P420 controller board - PCIe x8 low profile SAS controller - Has two internal x8 wide mini-SAS ports - For up to 6Gb/sec transfer rate for SAS and SATA - Does not include memory or backup power |
| 633542-001 | 1GB flash backed write cache (FBWC) memory module, 72-bit wide - Does not include the controller board or capacitor module |
Last updated: 5/2/2025
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1 Review
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5 Superb
Posted by Isaiah A - Fontana, California on Apr 25, 2017
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This product is warrantied against hardware failure for a period of 1 Year from the date of purchase. Before making a purchase, please take a moment to review our return policy below.
Returns
It is the customer's responsibility to verify compatibility with their machine(s) before placing an order. If an item is ordered by mistake, it can be returned for refund, minus a 25% restocking fee, within 5 business days of receipt. The cost of freight is not refundable.
Please be aware that factory-sealed equipment can only be returned if it remains unopened.
Defective Products
If you have received a defective part and your machine is still within the HPE warranty period, please initiate a warranty exchange by visiting the HPE Enterprise Support Center. Be sure to have the serial numbers of the defective drive and your server/storage array handy.
In case your hardware becomes defective during the Global One warranty period, but the HPE warranty has expired, you can return the product to us for a working replacement. You are responsible for the shipment of returned merchandise. However, we will cover the expense of Ground /Economy shipment for the replacement item(s).
Requesting an RMA
To initiate a return or warranty claim, please complete and submit the RMA Request Form.
