SK Hynix 16GB DDR4-2133 ECC Registered vs SK Hynix 16GB DDR4 ECC Server: Spec Comparison
As an Amazon Associate we earn from qualifying purchases. Links on this page are affiliate links.
This comparison covers the sk hynix hynix hma42gr7mfr4n tf ddr4 2133 16gb 2gx72 vs hynix 16gb. Both modules offer 16GB capacity and 2133MHz speed for server environments. They both include ECC Registered support to maintain data integrity. The main difference lies in their specific model numbers and physical dimensions. One uses a 2Gx72 configuration while the other is a single stick. You need to check your server compatibility carefully.
Key differences
| Aspect | SK Hynix 16GB DDR4-2133 ECC Registered Server Memory | SK Hynix 16GB DDR4 ECC Server RAM |
|---|---|---|
| Model Number | HMA42GR7MFR4N-TF | HMA42GR7AFR4N-TF |
| Kit Configuration | 2Gx72 | 1x16GB |
| Dimensions | not listed | 5.25 x 1.21 x 0.16 inches |
Which one should you choose?
Choose SK Hynix 16GB DDR4-2133 ECC Registered Server Memory if
- You require a 2Gx72 memory configuration for your specific server architecture.
- You are looking for the HMA42GR7MFR4N-TF model specifically.
Choose SK Hynix 16GB DDR4 ECC Server RAM if
- You need the exact physical dimensions for your server chassis.
- You prefer the HMA42GR7AFR4N-TF model configuration.
Verdict: Choose the first option if your server requires a 2Gx72 configuration. Choose the second option if you need the specific dimensions listed for the HMA42GR7AFR4N-TF model. Both provide identical speed and capacity for general server use.
SK Hynix 16GB DDR4 Server RAM
Memory speed
Both modules operate at a base frequency of 2133MHz. This speed is standard for DDR4 server memory from this era. You get consistent performance for data center workloads. Neither product offers higher clock speeds in their published specifications. The 2133MHz rating ensures compatibility with older server platforms that do not support faster DDR4 speeds. This makes both options viable for legacy systems requiring stable, moderate-speed memory. The performance difference is non-existent regarding frequency.
Capacity
Each stick provides 16GB of total memory capacity. This is a single-rank or dual-rank configuration depending on the specific chip layout, but the total usable space is identical. For server environments, 16GB modules allow for flexible DIMM slot filling. You can mix these with other 16GB sticks to build larger memory pools. The capacity is sufficient for many virtualization tasks or database applications. There is no advantage in storage volume between the two choices.
ECC support
Both products feature ECC Registered memory technology. This means they correct single-bit memory errors automatically, which is critical for server stability. The Registered feature reduces the electrical load on the memory controller, allowing for more DIMMs per channel. Both the HMA42GR7MFR4N-TF and the HMA42GR7AFR4N-TF include this error correction and registration. This ensures data integrity for long-running server processes. Neither product lacks this essential server-grade feature.
CAS latency
The SK Hynix 16GB DDR4-2133 ECC Registered Server Memory specifies a CAS Latency of CL13. This timing value indicates the delay before data is available after a command. Lower latency generally means faster response times. The second product, the SK Hynix 16GB DDR4 ECC Server RAM, does not list a CAS Latency value in its provided specifications. Without this data point, you cannot directly compare the timing performance. The first product provides this specific timing detail.
Physical dimensions
The SK Hynix 16GB DDR4 ECC Server RAM lists specific physical dimensions: 5.25 inches in length, 1.21 inches in height, and 0.16 inches in width. These measurements help you verify clearance in your server chassis. The other product, the SK Hynix 16GB DDR4-2133 ECC Registered Server Memory, does not provide dimensional data in its specifications. If you have tight space constraints, the listed dimensions of the second module are useful for planning. The first module lacks this physical data.
Which server memory module fits your needs?
Users needing wide 72-bit data path
This module features a 2Gx72 configuration. This specific architecture supports 72-bit data width. It is essential for systems requiring full ECC correction. The CL13 latency ensures stable timing. You should choose this if your server hardware mandates the 72-bit bus width for proper data integrity and error handling.
Users needing standard 64-bit configuration
This module uses a standard 1x16GB kit configuration. It is designed for typical 64-bit server architectures. The physical dimensions are listed as 5.25 by 1.21 by 0.16 inches. This fits standard server slots. You should select this if your system requires a standard single-rank module without the specific 72-bit requirements.
Users prioritizing compact physical profile
This item has a slim height of 0.16 inches. This low profile helps in dense server racks. The length is 5.25 inches. This size is standard for DIMM slots. You should pick this if space is limited or if you need a standard low-height module that fits easily into crowded server chassis environments.
The products compared
SK Hynix 16GB DDR4-2133 ECC Registered Server Memory
Best for: Servers requiring registered ECC stability
- Total Capacity
- 16GB
- Memory Speed
- 2133 MHz
- CAS Latency
- CL13
- ECC Support
- ECC REG
- Compatible Device
- Server
View on Amazon: SK Hynix 16GB DDR4-2133 ECC Registered Server Memory Affiliate link
This SK Hynix module provides 16GB of DDR4 memory running at 2133MHz. It features ECC/REG support and a CAS Latency of CL13. The 2Gx72 configuration is designed for server environments. You need this if your system requires registered ECC memory for stability. It suits users who prioritize error correction and server-grade reliability over high-speed gaming performance.
Pros
- 16GB capacity for substantial memory headroom
- ECC/REG support ensures data integrity
- 2133MHz speed suitable for standard server workloads
- CL13 latency balances performance and stability
Cons
- 2Gx72 configuration limits compatibility with standard desktops
- 2133MHz speed is slower than modern DDR4 options
- Registered ECC requires specific server motherboard support
Good fit if
- You are upgrading a server that requires ECC/REG modules
- You need 16GB of memory for enterprise workloads
- You prioritize data stability over maximum speed
Skip if
- You are building a standard desktop PC
- You require non-registered ECC memory
- You need speeds faster than 2133MHz
Verdict: SK Hynix 16GB DDR4 ECC Server Memory is a reliable choice for servers needing registered ECC stability. It fits users who value data integrity and specific server compatibility over high-frequency performance.
SK Hynix 16GB DDR4 ECC Server RAM
Best for: Server upgrades requiring registered ECC memory
- Total Capacity
- 16Gb
- Memory Speed
- 2133Mhz
- Module Configuration
- 1X16gb
- ECC Support
- Ecc Registered
- Compatible Device
- Server
- Dimensions
- 5.25 × 0.16 × 1.21 inches
View on Amazon: SK Hynix 16GB DDR4 ECC Server RAM Affiliate link
This is a single 16GB DDR4 module running at 2133MHz. It features ECC Registered technology, designed specifically for server environments. The physical dimensions are 5.25 inches long, 1.21 inches high, and 0.16 inches wide. You need this for systems requiring registered memory with error correction. It is a single stick configuration, so you will need additional modules to reach higher capacities or dual-channel speeds.
Pros
- 16GB capacity for server workloads
- 2133MHz memory speed
- ECC Registered support for data integrity
- Compact 0.16-inch profile
Cons
- Single stick limits bandwidth compared to kits
- 2133MHz is slower than newer DDR4 standards
- Requires compatible server motherboard
Good fit if
- You are upgrading a server with registered memory
- You need ECC support for critical data
- You are replacing a failed single module
Skip if
- You are building a standard desktop PC
- You need high-speed gaming memory
- You want a dual-channel kit out of the box
Verdict: SK Hynix 16GB DDR4-2133 ECC Registered Server Memory fits server administrators who need reliable, error-correcting memory for legacy or specific server platforms.
Specifications side by side
| Spec | SK Hynix 16GB DDR4-2133 ECC Registered Server Memory | SK Hynix 16GB DDR4 ECC Server RAM |
|---|---|---|
| Total Capacity | 16GB | 16Gb |
| Memory Speed | 2133 MHz | 2133Mhz |
| CAS Latency | CL13 | not stated |
| Module Configuration | not stated | 1X16gb |
| ECC Support | ECC REG | Ecc Registered |
| Compatible Device | Server | Server |
| Size | 16GB | 16GB |
| Dimensions | not stated | 5.25 × 0.16 × 1.21 inches |
| Model | HMA42GR7MFR4N-TF | HMA42GR7AFR4N-TF |
| Color | not stated | Multicolor |
Frequently asked questions
What is the main difference between the HMA42GR7MFR4N-TF and HMA42GR7AFR4N-TF models?
The primary distinction lies in their data architecture. The HMA42GR7MFR4N-TF uses a 2Gx72 configuration. This 72-bit width is critical for full error correction in specific server platforms. The HMA42GR7AFR4N-TF does not specify this wide data path in its published specs. You should verify your server’s requirement for 72-bit support before purchasing either module.
Are both SK Hynix 16GB modules compatible with standard desktop PCs?
No, these modules are designed exclusively for servers. Both products list Server as their compatible device. They utilize ECC Registered technology, which consumer desktop motherboards typically do not support. Using these in a standard PC will likely result in compatibility failures. You need a server-grade motherboard to utilize this memory.
Does the HMA42GR7AFR4N-TF have specific physical dimensions listed?
Yes, the HMA42GR7AFR4N-TF includes detailed physical measurements. It measures 5.25 inches in length, 1.21 inches in height, and 0.16 inches in width. The other model, HMA42GR7MFR4N-TF, does not provide these specific dimensions in its data. These measurements help you verify physical clearance within your server chassis.
Is ECC Registered support necessary for data integrity in these modules?
Yes, ECC Registered support is essential for the intended use case. Both modules provide this feature to detect and correct memory errors. This is vital for server environments where data integrity is paramount. The registered component also helps manage signal integrity at higher capacities. You rely on this for stable, long-running server operations.
Can I mix these two SK Hynix models in the same server?
Mixing them is not recommended due to architectural differences. One model uses a 2Gx72 configuration while the other does not specify this. Servers often require matched memory modules for stability. Mismatched data widths or timings can cause system instability or boot failures. You should install identical modules from the same model number for best results.
What does the 2Gx72 configuration actually mean for performance?
The 2Gx72 configuration refers to the memory chip organization and data width. It indicates a 72-bit data path per rank. This wider path is necessary for systems requiring robust error correction without sacrificing bandwidth. It ensures that the ECC bits are handled efficiently alongside the data. This architecture is specific to certain high-reliability server platforms.
Is the memory speed different between the two listed SK Hynix products?
No, the memory speed is identical for both modules. Both operate at a base frequency of 2133MHz. This speed is standard for DDR4 server memory of this generation. You will not gain performance by choosing one over the other based on clock speed. The stability comes from the ECC Registered nature, not higher frequencies.