SK Hynix 4GB 1Rx16 DDR4-2666V-U PC4-21300 UDIMM Non-ECC Memory HMA851U6JJR6N-VK

Upgrade your desktop system with the SK Hynix 4GB 1Rx16 DDR4-2666V-U PC4-21300 UDIMM Non-ECC Memory HMA851U6JJR6N-VK, a dependable DDR4 memory module designed to deliver efficient performance for everyday computing, office workloads, and general system upgrades. Built by SK Hynix, one of the industry's leading memory manufacturers, this module offers reliable operation and compatibility with a wide range of desktop platforms that support DDR4 UDIMM memory.

Featuring a 4GB capacity and 2666MHz operating speed, this memory module helps improve system responsiveness, application performance, and multitasking capabilities. Its PC4-21300 bandwidth provides fast data throughput, while the unbuffered, non-ECC design makes it ideal for standard desktop computers and entry-level workstation environments.

The HMA851U6JJR6N-VK utilizes a 1Rx16 single-rank architecture and operates at an energy-efficient 1.2V, helping balance performance and power consumption for modern computing systems.

Key Features

• Manufacturer: SK Hynix
• Part Number: HMA851U6JJR6N-VK
• Alternative Part Number: HMA851U6CJR6N-VK
• Capacity: 4GB
• Memory Type: DDR4 SDRAM
• Form Factor: 288-Pin UDIMM
• Speed: DDR4-2666V / 2666MHz
• Bandwidth: PC4-21300
• Rank Configuration: 1Rx16 (Single Rank)
• Module Organization: 512M x 64
• ECC Support: Non-ECC
• Buffered: Unbuffered
• CAS Latency: CL19 (19-19-19)
• Voltage: 1.2V
• Cycle Time: 0.75ns
• SKU: HMA851U6JJR6N-VK

Benefits

• Improves overall desktop performance and responsiveness
• Ideal for upgrading aging DDR4 systems
• Low-power 1.2V operation supports energy efficiency
• Designed for compatibility with standard desktop motherboards
• Reliable SK Hynix memory technology for long-term stability
• Great solution for office PCs, home computers, and entry-level workstations

Ideal Applications

• Everyday desktop computing
• Office productivity software
• Web browsing and multitasking
• Educational environments
• Small business workstations
• System repairs and memory upgrades

Compatibility Information

The SK Hynix 4GB 1Rx16 DDR4-2666V-U PC4-21300 UDIMM Non-ECC Memory HMA851U6JJR6N-VK is designed for desktop systems that support DDR4 UDIMM memory. Because it is a Non-ECC, Unbuffered DIMM, it is not intended for servers that require ECC Registered (RDIMM) memory. Always verify your motherboard's memory specifications before installation.

Whether you're replacing a faulty module or expanding available memory, the SK Hynix 4GB 1Rx16 DDR4-2666V-U PC4-21300 UDIMM Non-ECC Memory HMA851U6JJR6N-VK provides a cost-effective and reliable upgrade path for compatible DDR4 desktop systems.