Brand: HPE | Category: Memory (RAM)
SKU: 838081-B21 | Part #: 838081-B21 | MPN: 838081-B21
Contact for Pricing — Request a Quote
The HPE 16GB 2Rx8 PC4-2666V-R RDIMM SmartMemory (838081-B21) is a registered DDR4 dual-rank memory module engineered to HPE's exacting specifications for Gen10 and select Gen9 ProLiant server platforms. Operating at a native clock speed of 2666 MT/s with a 1.2V operating voltage, this module delivers a balance of high-bandwidth throughput and energy efficiency suited to the demands of modern datacenter infrastructure. The dual-rank, x8 organization across a 288-pin RDIMM form factor provides broad slot compatibility and predictable performance across HPE's validated hardware ecosystem.
As HPE SmartMemory, this module carries an embedded SPD that is recognized and authenticated by HPE ProLiant server firmware at POST. This authentication unlocks full feature access — including HPE Advanced Memory Protection technologies such as Advanced ECC and online spare memory — which remain unavailable or degraded when non-HPE memory is installed. The on-module SPD data also enables HPE Insight Diagnostics and iLO health monitoring to report accurate module health, operating conditions, and predictive failure analytics, supporting proactive maintenance strategies in enterprise environments.
This RDIMM is suited to mixed general-purpose and data-intensive server workloads where registered buffering is required to maintain signal integrity across densely populated memory configurations. Typical deployment scenarios include multi-socket ProLiant DL380 Gen10, DL360 Gen10, and ML350 Gen10 platforms running virtualization, database, ERP, and analytics workloads. For organizations operating datacenter fleets across UAE, GCC, EMEA, and APAC regions, Omnixon Global provides access to HPE SmartMemory inventory to support both new deployments and incremental capacity expansions.
| Manufacturer | HPE |
| Manufacturer Part Number | 838081-B21 |
| Memory Capacity | 16 GB |
| Memory Technology | DDR4 |
| Module Type | RDIMM (Registered DIMM) |
| Form Factor | 288-pin DIMM |
| Speed | 2666 MT/s (PC4-2666V-R) |
| Rank Configuration | 2Rx8 (Dual Rank, x8 organization) |
| Error Correction | ECC (Error Correcting Code) |
| Operating Voltage | 1.2 V |
| CAS Latency | CL19 |
| Memory Series | HPE SmartMemory |
| Compatible Server Families | HPE ProLiant Gen10; select HPE ProLiant Gen9 |
| SmartMemory Authentication | Embedded SPD recognized by HPE ProLiant firmware at POST for full RAS feature unlock |
| HPE Advanced Memory Protection Support | Yes — supports Advanced ECC, online spare, and mirrored memory modes (platform dependent) |
| iLO Health Monitoring Integration | Yes — module health, temperature, and predictive failure data surfaced via HPE iLO |
| RoHS Compliance | Yes |
Available from Omnixon Global. Submit an RFQ and our team will confirm configuration and availability for your order.
| Brand | HPE |
| Category | Memory (RAM) |
| SKU | 838081-B21 |
| Part Number | 838081-B21 |
| Condition | New |
| Manufacturer Part Number | 838081-B21 |
| Memory Capacity | 16 GB |
| Memory Technology | DDR4 |
| Module Type | RDIMM (Registered DIMM) |
| Form Factor | 288-pin DIMM |
| Speed | 2666 MT/s (PC4-2666V-R) |
| Rank Configuration | 2Rx8 (Dual Rank, x8 organization) |
| Error Correction | ECC (Error Correcting Code) |
| Operating Voltage | 1.2 V |
| CAS Latency | CL19 |
| Memory Series | HPE SmartMemory |
| Compatible Server Families | HPE ProLiant Gen10; select HPE ProLiant Gen9 |
| SmartMemory Authentication | Embedded SPD recognized by HPE ProLiant firmware at POST for full RAS feature unlock |
| HPE Advanced Memory Protection Support | Yes — supports Advanced ECC, online spare, and mirrored memory modes (platform dependent) |
| iLO Health Monitoring Integration | Yes — module health, temperature, and predictive failure data surfaced via HPE iLO |
| RoHS Compliance | Yes |
Part number 838081-B21 is qualified for HPE servers that list compatible memory in their QVL. We verify QVL match before quoting — share your server model in the RFQ and our pre-sales engineers confirm fit, recommended population pattern, and total capacity supported.
Full manufacturer support (typically 3 years, RDIMM/LRDIMM SKUs often lifetime against manufacturing defects). All product is sourced through distribution so support registers cleanly under your company name.
Submit the RFQ form on this page with your quantity and destination country. Our pre-sales team responds with a vendor-confirmed quote, availability, and matching server-QVL confirmation if needed.