Safe checkout
Secure payments
Fast dispatch
1–2 day handling
Free shipping
U.S. ground
Warranty & RMA
Support after delivery
HP E2Q91A6R 4GB DDR3-1866MHz UDIMM 2Rx8 CL13 Memory
- Capacity: 4GB
- Type: DDR3 SDRAM
- Speed: 1866MHz (PC3-14900)
- Form Factor: UDIMM (Unbuffered DIMM)
- Configuration: 2Rx8 (Dual Rank, x8)
- Latency: CL13
- Voltage: 1.5V
- ECC: Non-ECC
E2Q91A6R isn't on our shelf today — we source it to order. Request a quote and we'll confirm price and lead time within one business day.
Key specifications
See full specs ↓- Memory Size
- 4GB
- Memory Type
- DDR3 SDRAM
- Memory Speed
- 1866MHz
- Form Factor
- UDIMM
- Rank
- 2Rx8
- CAS Latency
- CL13
Product details
This HP 4GB DDR3-1866MHz UDIMM memory module is designed for systems needing a performance boost with faster clock speeds. It features a 2Rx8 configuration and CL13 latency, suitable for demanding applications and multitasking environments.
Technical Information
| Memory Size | 4GB |
| Memory Type | DDR3 SDRAM |
| Memory Speed | 1866MHz |
| Form Factor | UDIMM |
Additional Specifications
| Rank | 2Rx8 |
| CAS Latency | CL13 |
| Voltage | 1.5V |
Description
The HP E2Q91A6R is a 4GB DDR3 Unbuffered DIMM (UDIMM) memory module engineered for enhanced performance in compatible HP servers and workstations. Operating at a higher frequency of 1866MHz, it offers increased bandwidth compared to lower-speed DDR3 modules, which can significantly improve application responsiveness and system throughput. The 2Rx8 configuration indicates a dual-rank design utilizing x8 DRAM devices, potentially optimizing memory access patterns for certain processors and motherboards. This memory module features a CAS Latency (CL) of 13, which is a common timing for DDR3-1866MHz modules. While slightly higher than CL11, it is optimized for the increased clock speed, ensuring efficient data transfer. The standard 1.5V operating voltage ensures compatibility with systems designed for DDR3 memory. This is a non-ECC module, meaning it does not have error correction capabilities built-in, making it suitable for environments where ECC is not a requirement or is handled by other system components. This 4GB DDR3-1866MHz UDIMM is an excellent choice for upgrading systems that require faster memory performance for tasks such as virtualization, database operations, or multimedia processing. Its specifications provide a noticeable performance uplift for memory-bound applications. The module is built to HP's quality standards, ensuring reliability and compatibility within the HP ecosystem.
Condition: Refurbished
Free U.S. ground shipping
Typically 1–2 days handling, 3–7 days in transit.
Purchase orders accepted
Government, enterprise, data center and small business.
Buying 10+ units?
Get volume pricing and availability for E2Q91A6R.



