HPE 8GB (1 x 8GB) Single Rank x4 DDR4-2133 CAS-15-15-15 Registered Memory Kit
Fits 12 HPE ProLiant server models. See the list
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Part number cross-reference
- Part number
- 726718-B21
Overview
This item, 726718-B21, is the HPE option part number for the product described as 8GB (1 x 8GB) Single Rank x4 DDR4-2133 CAS-15-15-15 Registered Memory Kit. Further details below.
Enhance your server's performance with this 8GB DDR4 registered DIMM. Operating at 2133 MHz with a CAS Latency of 15, this module delivers reliable speed and efficiency for various server applications. The inclusion of ECC ensures data integrity, contributing to a stable and dependable computing environment.
This 8GB registered memory module is compatible with a range of HPE servers, including but not limited to the BL460c Gen9, DL380 Gen9, DL360 Gen9, DL388 Gen9, DL120 Gen9, DL160 Gen9, DL180 Gen9, DL60 Gen9, DL80 Gen9, ML150 Gen9, and ML350 Gen9. It provides a straightforward and cost-effective way to upgrade your server's memory capacity.
HPE Option Part #: 726718-B21
HPE Spare Part #: 774170-001
HPE Assembly Part #: 752368-081
PRODUCT SPECIFICATIONS FOR 726718-B21:
- CAS Latency: CL15
- Chips Organization: X4
- Data Integrity Check: ECC
- Form Factor: DIMM 288-pin
- Latency Timings: 15-15-15
- Memory Specification Compliance: PC4-17000
- Memory Speed: 2133 MHz
- RAM Features: Single Rank
- Registered or Buffered: Registered
- Storage Capacity: 8 GB
- Supply Voltage: 1.2 V
- Technology: DDR4 SDRAM
- Upgrade Type: System specific
- Weight: 0.3 ounces
- Dimensions: 7.5 x 3.5 x 0.5 inches
COMPATIBLE WITH:
PROLIANT BL SERIES
PROLIANT DL SERIES
PROLIANT ML SERIES
** This list may not be complete. Contact us via Live Chat if you have any questions about compatibility.
HPE PARTSURFER INFO FOR 726718-B21
| Spare PN | Description | |
|---|---|---|
| 774170-001 | 8GB, 2133MHz, PC4-2133P-R, DDR4, single-rank x4, 1.20V, CAS-15-15-15, registered dual in-line memory module (RDIMM) ; |
Last Updated: 2026-07-24
Other sizes in this family
| Part number | Capacity | Type | Rank | Price | Availability |
|---|
Working out how many you need? Each server's memory page counts the modules for the capacity you want: see Compatible servers.
Specifications
Compatible servers
Each server opens that model's memory page, with its slot rules and a kit picker.
Part numbers
Every number below identifies this same part. Match any of them to the label on the part you are replacing.
Questions about 726718-B21
Warranty and returns
5-year replacement warranty
Covered against hardware failure for 5 years from the date of purchase. While HPE's own warranty runs, HPE replaces a failed part through the HPE Enterprise Support Center. After that, send it back to us for a working replacement; you ship it to us and we pay Ground or Economy shipping on the replacement.
Ordered the wrong part?
It is the customer's responsibility to verify compatibility before ordering. A part ordered by mistake can be returned for a refund, less a 25% restocking fee, within 5 business days of receipt. Freight is not refunded, and factory-sealed items can only be returned unopened. Check Compatible servers before you order.
Start a return or claim
Complete the RMA request form and send it to us, or choose Warranty or return on the contact form.
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726718-B21 HPE 8GB (1 x 8GB) Single Rank x4 DDR4-2133 CAS-15-15-15 Registered Memory Kit
Filling a whole server?
Each server's memory page works out how many modules a capacity takes and where they go. For a full bill of materials, send it with your server model and we reply with pricing and availability within 24 hours.
