HPE 256GB (1x256GB) Dual Rank x4 DDR5-6400 CAS-60-52-52 EC8 Registered Smart Memory Kit
Fits 1 HPE ProLiant server model. See the list
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Part number cross-reference
- Part number
- P73477-B21
Overview
This item, P73477-B21, is the HPE option part number for the product described as 256GB (1x256GB) Dual Rank x4 DDR5-6400 CAS-60-52-52 EC8 Registered Smart Memory Kit. Further details below.
Maximize memory bandwidth and capacity in your HPE Gen12 server with this 256GB DDR5-6400 Registered Smart Memory module. Designed for high-performance enterprise workloads, this dual-rank x4 DIMM operates at an ultra-fast 6400 MT/s and features a CAS latency of 60-52-52, enabling faster data access and improved responsiveness in demanding applications such as virtualization, large-scale databases, and real-time analytics.
As part of HPE’s Smart Memory lineup, this module undergoes rigorous testing and validation to ensure full compatibility, reliability, and performance optimization with supported systems. Compatibility includes but is not limited to select HPE ProLiant Gen12 servers that support DDR5 RDIMM technology, making this kit a future-ready solution for boosting server efficiency and performance.
HPE Option Part #: P73477-B21
HPE Spare Part #: n/a
HPE Assembly Part #: n/a
Compatible with:
✅ certain Gen12 servers
✅ and possibly others
Contact us via Live Chat if you have any questions about compatibility.
Last updated: 3/27/2025
Other sizes in this family
| Part number | Capacity | Type | Rank | Price | Availability |
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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
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Questions about P73477-B21
Warranty and returns
1-year replacement warranty
Covered against hardware failure for 1 year 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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Complete the RMA request form and send it to us, or choose Warranty or return on the contact form.
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P73477-B21 HPE 256GB (1x256GB) Dual Rank x4 DDR5-6400 CAS-60-52-52 EC8 Registered Smart 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.
