HPE Gen10 Memory (2nd Gen CPU)
HPE 16GB (1 x 16GB) Dual Rank x8 DDR4-2933 CAS-21-21-21 Registered Smart Memory Kit
Fits 2 HPE ProLiant server models. See the list
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Part number cross-reference
- Part number
- P19042-B21
Overview
This item, P19042-B21, is the HPE option part number for the product described as 16GB (1 x 16GB) Dual Rank x8 DDR4-2933 CAS-21-21-21 Registered Smart Memory Kit. Further details below.
This 16GB DDR4-2933 Registered Smart Memory module is an efficient and reliable memory upgrade for HPE Gen10 servers, ideal for general-purpose computing, virtualization, and business applications. With a speed of 2933 MHz and CL21 latency, it provides responsive performance and consistent throughput.
Featuring dual-rank x8 architecture, ECC support, and a registered design, this module enhances system stability and reduces memory errors during high-load operations. Compatible systems include but are not limited to select HPE Gen10 servers.
HPE Option Part #: P19047-B21
HPE Spare Part #: P19402-001
HPE Assembly Part #: P11057-1A1
Specifications:
- Capacity: 16 GB
- Upgrade Type: System specific
- OEM Manufacturer Equivalent Part Number: HPE P19042-B21, HPE P19253-001
- Type: DRAM memory module
- Technology: DDR4 SDRAM
- Form Factor: DIMM 288-pin
- Speed: 2933 MHz (PC4-23400)
- Latency Timings: CL21 (21-21-21)
- Data Integrity Check: ECC
- Features: Dual Rank, registered
- Chips Organization: X8
- Voltage: 1.2 V
RESOURCES:
Quickspecs for P19042-B21
✅ certain Gen10 servers
✅ and possibly others
Contact us via Live Chat if you have any questions about compatibility.
Last updated: 10/24/2023
Last Updated: 2026-07-09
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 P19042-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.
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P19042-B21 HPE 16GB (1 x 16GB) Dual Rank x8 DDR4-2933 CAS-21-21-21 Registered Smart Memory Kit
Filling a whole server?
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