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4GB RAM Replacement for Samsung M391B5273DH0-CMA | DDR3 1866MHz PC3-14900 ECC UDIMM 2Rx8 Server Memory
- 4GB ( 1x 4GB Module ) | DDR3 1866 MHz ( PC3-14900 ) | DDR3 DIMM ( 240-Pin ) | ECC UDIMM ( ECC Unbuffered DIMM ) | 1.5V - DDR3 Standard Voltage
- Compatible Equivalent for Samsung M391B5273DH0-CMA
- High performance Memory RAM upgrade designed for Server/Workstation Systems
- All modules undergo quality assurance testing to ensure dependable and reliable performance | Please verify the supported memory (RAM) specifications of your system prior to purchase to ensure compatibility
- A-Tech provides a Lifetime Warranty for all orders & offers complimentary United States based Tech Support before, during, & after your purchase
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An A-Tech Memory (RAM) upgrade is an easy, quick way to boost your system's performance by speeding up loading times, improving system responsiveness, and increasing your system's ability to handle higher workloads. Take on more and multitask with ease with a simple and affordable A-Tech Memory upgrade!
Compatible Memory Module Replacement for Samsung:
M391B5273DH0-CMA
Memory Specs
Memory Size: 4 GB ( 1 x 4 GB Module )
Memory Type: DDR3
Form Factor: DIMM ( 240 Pin )
Speed: DDR3 1866 MHz ( PC3-14900 )
ECC Type: ECC UDIMM ( ECC Unbuffered DIMM )
Voltage: 1.5V
Ensured Reliability
All A-Tech Memory products are rigorously tested to ensure that your memory meets our stringent quality and performance standards.
Lifetime Warranty
Purchase with confidence knowing that all A-Tech orders are backed with our Lifetime Warranty.
US Based Technical Support
Need help? Have questions? Our 5 star United States based support team is here to help before, during, and after your purchase to make sure you are completely satisfied with your A-Tech Memory!
Compatible Memory Module Replacement for Samsung:
M391B5273DH0-CMA
Memory Specs
Memory Size: 4 GB ( 1 x 4 GB Module )
Memory Type: DDR3
Form Factor: DIMM ( 240 Pin )
Speed: DDR3 1866 MHz ( PC3-14900 )
ECC Type: ECC UDIMM ( ECC Unbuffered DIMM )
Voltage: 1.5V
Ensured Reliability
All A-Tech Memory products are rigorously tested to ensure that your memory meets our stringent quality and performance standards.
Lifetime Warranty
Purchase with confidence knowing that all A-Tech orders are backed with our Lifetime Warranty.
US Based Technical Support
Need help? Have questions? Our 5 star United States based support team is here to help before, during, and after your purchase to make sure you are completely satisfied with your A-Tech Memory!
Warranty & Returns
Warranty, Returns, And Additional Information
Warranty
- Please contact the Seller directly for warranty information. Warranty information may also be found on the Manufacturer's website.
- CONTACT
Return Policies
- Return for refund within: 30 days
- Return for replacement within: 30 days
- This item is covered by A-Tech Return Policy
Manufacturer Contact Info
- For a directory of all our manufacturers, please click below.
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A-Tech 4GB DDR3-1866 ECC unbuffered DIMM is a replacement equivalent for Samsung M391B5273DH0-CMA, suited to compatible servers and workstations that support 240-pin, 1.5V, 2Rx8 memory.
Recommended For
- IT staff maintaining an older server or workstation who need a single 4GB DDR3 ECC UDIMM replacement and have verified the system supports this module type and speed.
- Operators of entry-level servers or workstations whose motherboard and CPU explicitly support ECC unbuffered memory, and who want ECC capability without using registered DIMMs.
- Homelab or NAS builders extending a compatible DDR3 system with a modest-capacity module, after checking the system manual for ECC UDIMM support and memory limits.
- Repair technicians matching a compatible system’s existing 4GB DDR3-1866 ECC UDIMM configuration, rather than upgrading to a different memory generation or module type.
Real-World Use Scenarios
- Replacing a failed or mismatched memory module in a compatible older server or workstation: this 4GB stick can restore or maintain system operation, but the system must support DDR3 ECC unbuffered DIMMs.
- Expanding memory in a compatible entry-level home server: the added capacity can give the operating system and lightweight server services more room, though one 4GB module is a modest upgrade rather than a high-capacity setup.
- Upgrading a compatible NAS or backup server: extra memory may help the system run its file-sharing and background services with less memory pressure; actual benefit depends on the NAS software and workload.
- Building or maintaining a small home lab on older hardware: this module can serve as a replacement or incremental memory addition for compatible lab systems, but it will not fit systems that require registered DIMMs.
- Keeping a legacy workstation in service for routine office, maintenance, or light technical tasks: adding memory may ease slowdowns caused by low available RAM, but this 4GB module alone is not intended to transform demanding workloads.