Safe checkout
Secure payments
Fast dispatch
1–2 day handling
Free shipping
U.S. ground
Warranty & RMA
Support after delivery
Apacer 78.B1GS9.4040B 4GB DDR4-2666MHz RDIMM 1Rx8 CL19 Memory
- Capacity: 4GB
- Type: DDR4 SDRAM
- Form Factor: RDIMM (Registered DIMM)
- Speed: 2666MHz
- Rank: 1Rx8 (Single Rank x8)
- Manufacturer: Apacer
- Part Number: 78.B1GS9.4040B
- Designed for server/workstation use
78.B1GS9.4040B 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 ↓- Capacity
- 4GB
- Memory Type
- DDR4 SDRAM
- Form Factor
- RDIMM
- Speed
- 2666MHz
- Rank Configuration
- 1Rx8
- Manufacturer
- Apacer
Product details
The Apacer 78.B1GS9.4040B is a 4GB DDR4-2666MHz RDIMM memory module. It is an 1Rx8 module, indicating a single rank with 8 internal memory chips per rank, designed for server and workstation applications.
Technical Information
| Capacity | 4GB |
| Memory Type | DDR4 SDRAM |
| Form Factor | RDIMM |
| Speed | 2666MHz |
Additional Specifications
| Rank Configuration | 1Rx8 |
| Manufacturer | Apacer |
| Part Number | 78.B1GS9.4040B |
Description
This Apacer memory module, part number 78.B1GS9.4040B, is a 4GB DDR4 Registered DIMM (RDIMM) operating at a speed of 2666MHz. RDIMMs are designed for server and high-end workstation environments, where they help improve system stability and allow for larger memory capacities by reducing the electrical load on the memory controller. The 'registered' nature means that the data signals are buffered by a register chip on the module itself. The 1Rx8 configuration signifies that the module is single-ranked, with each memory chip on the module having an organization of x8 bits. This configuration is common and generally offers good performance for most server workloads. The DDR4 technology represents a significant advancement over previous DDR generations, offering higher speeds, lower voltage requirements, and increased bandwidth. With a capacity of 4GB and a speed of 2666MHz, this Apacer RDIMM is suitable for upgrading or populating memory in compatible server motherboards that support DDR4 RDIMMs. It is a standard component for enhancing the memory resources of systems used for virtualization, database management, scientific computing, and other memory-intensive applications.
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 78.B1GS9.4040B.
