HPE 32GB 2Rx8 DDR5-4800B PC5-38400 ECC Registered Memory P50311-B21 P56152-001 P43330-1A1
The HPE P50311-B21 (Option Part), P56152-001 (Spare Part), and P43330-1A1 (Assembly Part) all refer to the exact same hardware: a 32GB DDR5-4800 Registered Smart Memory module designed for HPE ProLiant Gen11 servers. This module delivers next-generation performance, improved efficiency, and advanced reliability through HPE SmartMemory technology.
Core Specifications
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Capacity: 32GB (1 x 32GB module)
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Memory Type: DDR5 SDRAM
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Speed: 4800 MT/s (DDR5-4800 / PC5-38400)
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Form Factor: 288-pin RDIMM (Registered DIMM)
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Rank: 2Rx8 (Dual Rank x8)
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Latency: CL40 / CL42 (Typical 40-39-39)
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Voltage: 1.1V
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Error Correction: ECC (Error-Correcting Code)
Key Features
HPE SmartMemory Technology:
Enables advanced monitoring, enhanced reliability, and performance optimization via iLO 6
Next-Generation DDR5 Performance:
Higher bandwidth and improved efficiency compared to DDR4
Enterprise Reliability:
ECC protection and HPE validation ensure maximum uptime and stability
Optimized for Gen11 Platforms:
Designed specifically for HPE ProLiant Gen11 systems with latest Intel and AMD processors
Compatible HPE Gen11 Systems
These modules are certified for use in the following HPE Gen11 platforms:
ProLiant DL Series (Rack Servers)
DL325 Gen11 (4th Gen AMD)
DL345 Gen11 (4th Gen AMD)
DL365 Gen11 (4th & 5th Gen AMD)
DL385 Gen11 (4th & 5th Gen AMD)
ProLiant ML Series (Tower Servers)
ML110 Gen11 (4th & 5th Gen Intel)
ML350 Gen11 (4th & 5th Gen Intel)
ProLiant DX (Nutanix HCI)
DX365 Gen11
Synergy Systems
Synergy 480 Gen11 (4th Gen Intel)
HPE Cray Systems
Cray Storage Systems DL325
Key Compatibility Notes
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No Mixing x4 and x8 Modules:
This 2Rx8 DIMM cannot be mixed with x4 memory modules in the same system
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Assembly Mixing Restriction:
Do not mix P43330-1A1 with P43330-0A1 in the same memory bank
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Speed Behavior:
May downclock to 4400 MT/s when using 2 DIMMs per channel (2DPC)
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Processor Limitation:
Will operate at 4800 MT/s even if CPUs support higher speeds
Physical Characteristics
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Height: ~0.8 inches
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Weight: ~1.41 oz
Related Part Numbers
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P50311-B21 (Option Part Number)
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P56152-001 (Spare Part Number)
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P43330-1A1 (Assembly Number)
- HMCG88AEBRA107N
- HMCG88AEBRA115N
- P43328-B21
- P48501-001
The HPE 32GB DDR5-4800 RDIMM SmartMemory module delivers cutting-edge performance, efficiency, and reliability, making it an ideal solution for modern HPE Gen11 server environments requiring high-speed, enterprise-grade memory.