SK Hynix HMA84GR7MFR4N-TF 32gb Ddr4-2133mhz Alternatives: 6 Similar Picks Compared
As an Amazon Associate we earn from qualifying purchases. Links on this page are affiliate links.
You are looking for sk hynix hynix hma84gr7mfr4n tf 32gb ddr4 2133mhz alternatives because your server needs may have shifted. The original SK Hynix 32GB DDR4-2133MHz ECC module delivers reliable error correction at a standard 2133MHz speed. This makes it a solid choice for systems prioritizing stability over raw performance. However, you might need different specifications for your specific hardware configuration. Some builds require registered memory, while others might benefit from higher clock speeds or greater capacity. The alternatives in this list were chosen because their specs overlap with the original product's core requirements. We compared 6 similar picks to find modules that share key attributes like ECC support and DDR4 compatibility. You will find options that offer 1.2V operation, larger 64GB capacities, or faster 2400MHz speeds. These variations address different server environments without sacrificing the essential error-checking features. Whether you need a budget-friendly replacement or a premium upgrade, the selected items provide distinct advantages based on their published data. This guide helps you navigate the specific technical differences between these server memory options.
How alternatives compare to the original
A-Tech 32GB DDR4-2133 ECC RDIMM
The A-Tech module offers 1.2V operation and RDIMM form factor, differing from the original's unspecified voltage and potential UDIMM layout. It targets exact replacements for Samsung server modules with 2Rx4 compatibility. You gain precise voltage stability for legacy systems but may lose the generic flexibility of the SK Hynix part. This pick suits users needing an exact pin-for-pin swap in specific server environments where voltage tolerance is critical for stability.
Kingston 64GB DDR4 ECC REG Server Kit
Kingston provides 64GB capacity, doubling the original's 32GB size for high-memory server applications. It maintains 2133MHz speed and ECC support but adds CL15 latency. You get more memory for data-intensive tasks but accept a larger physical footprint and potentially higher power draw. This option is best for servers requiring maximum capacity over speed, allowing you to run larger databases or virtual machines without hitting memory limits on a single stick.
SK Hynix 32GB DDR4-2133 RDIMM
This SK Hynix RDIMM variant specifies the registered form factor, whereas the original does not explicitly state RDIMM in its attributes. It keeps the 32GB size and 2133MHz speed with ECC support. You gain confirmed registered memory compatibility for stricter server boards but might find fewer non-server use cases. This is ideal for legacy server upgrades requiring certified ECC RDIMM modules, ensuring compatibility where the original's UDIMM status might cause confusion.
SK Hynix 32GB DDR4 ECC Registered Server RAM
This SK Hynix option explicitly confirms ECC Registered support, matching the original's ECC but adding the registered distinction. It shares the 32GB size and 2133MHz speed. You get clearer server-grade compatibility for single-stick upgrades but lose the ambiguity that might allow broader consumer use. This pick is practical for servers needing a single 32GB ECC/Reg stick, offering certainty for IT professionals managing specific server memory configurations without guessing form factor details.
SK Hynix 32GB DDR4-2400 ECC REG
The SK Hynix 2400MHz model offers faster speed than the original's 2133MHz, keeping the 32GB size and ECC support. You gain roughly 12.5% higher bandwidth for server workloads but may face compatibility issues with older boards limited to 2133MHz. This is a solid choice for newer server builds where the motherboard supports higher DDR4 speeds, allowing you to utilize the full potential of registered memory for improved data throughput in active applications.
Samsung 32GB DDR4-2400 ECC Registered Server RAM
Samsung provides 2400MHz speed, exceeding the original's 2133MHz, while maintaining 32GB size and ECC support. It is certified for Supermicro servers, offering specific brand compatibility that the generic SK Hynix part lacks. You get potentially better stability in Supermicro systems but lose the broader SK Hynix brand recognition. This pick suits IT professionals prioritizing certified compatibility for Supermicro hardware, ensuring reliable operation in enterprise environments where brand-specific validation is preferred.
Quick picks
Our 7 picks
SK Hynix 32GB DDR4-2133MHz ECC
Best for: Server ECC memory needs
- Total Capacity
- 32GB
- Memory Speed
- 2133MHz
- ECC Support
- ECC
View on Amazon: SK Hynix 32GB DDR4-2133MHz ECC Affiliate link
This SK Hynix module provides 32GB of DDR4 memory running at 2133MHz. It includes ECC support to detect and correct data errors, which helps maintain system stability in server or workstation environments. The kit is designed for users who need reliable, error-correcting memory for critical tasks. You get a single stick that fits standard DIMM slots. This option suits those prioritizing data integrity over higher clock speeds.
Pros
- 32GB total capacity
- 2133MHz memory speed
- ECC error correction support
Cons
- Lower 2133MHz speed compared to 2400MHz alternatives
- Single stick configuration limits dual-channel bandwidth potential
Good fit if
- You require ECC memory for server stability
- You need 32GB of capacity for specific applications
- You are upgrading a system that supports DDR4-2133
Skip if
- You need higher speeds like 2400MHz or above
- You want a dual-channel kit for better performance
- You are building a consumer gaming PC without ECC support
Verdict: SK Hynix 32GB DDR4-2133 ECC fits server builds requiring error correction. It suits users who prioritize stability over speed.
A-Tech 32GB DDR4-2133 ECC RDIMM
Best for: exact Samsung server module replacement
- Total Capacity
- 32GB
- Memory Speed
- 2133 MHz
- Voltage
- 1.2V
- Module Configuration
- 1x32GB
- Form Factor
- RDIMM
- ECC Support
- ECC
View on Amazon: A-Tech 32GB DDR4-2133 ECC RDIMM Affiliate link
This A-Tech module provides 32GB of DDR4 memory running at 2133MHz. It uses the RDIMM form factor and supports ECC for error correction. The unit operates at 1.2V, which aligns with standard low-voltage server requirements. You need this specific replacement for systems requiring 2Rx4 configuration. It serves as a direct swap for Samsung M393A4K40BB0-CPB units in compatible server environments.
Pros
- 32GB capacity for single-slot installation
- 2133MHz speed rating
- ECC support for data integrity
- 1.2V operating voltage
- RDIMM form factor
Cons
- Limited to 2133MHz speed
- Single stick capacity
- Specific replacement compatibility only
Good fit if
- You need a 32GB replacement for Samsung M393A4K40BB0-CPB
- Your server requires 1.2V ECC RDIMM memory
- You are upgrading a single memory slot
Skip if
- You require speeds higher than 2133MHz
- You need a dual-channel kit
- Your motherboard does not support RDIMM modules
Verdict: A-Tech 32GB DDR4-2133 ECC RDIMM fits users replacing specific Samsung server modules. It delivers stable 1.2V performance for systems needing exact 2Rx4 compatibility.
Kingston 64GB DDR4 ECC REG Server Kit
Best for: high-capacity server memory needs
- Total Capacity
- 64GB
- Memory Speed
- 2133MHz
- CAS Latency
- CL15
- Module Configuration
- 4x16GB
- Form Factor
- DIMM
- ECC Support
- ECC Reg
View on Amazon: Kingston 64GB DDR4 ECC REG Server Kit Affiliate link
This Kingston kit gives you 64GB of DDR4 memory running at 2133MHz. It uses registered DIMMs with ECC support to keep your server data stable. The CL15 latency is standard for this speed. You get four 16GB modules in one package. This setup is ideal for systems that need double the capacity of the 32GB options on this list.
Pros
- 64GB total capacity (4x16GB modules)
- 2133MHz DDR4 speed
- ECC support for error correction
- Registered DIMM design
- CL15 CAS latency
Cons
- Lower 2133MHz speed compared to 2400MHz alternatives
- Requires four slots, limiting upgrade flexibility
- Heavier build than single stick options
Good fit if
- You need 64GB of RAM for heavy server workloads
- You are building a system that supports registered memory
- You prioritize capacity over higher clock speeds
Skip if
- You only have two memory slots available
- You need speeds faster than 2133MHz
- You are upgrading a consumer desktop that lacks ECC support
Verdict: Kingston 64GB DDR4-2133 ECC Registered Server RAM is the right choice if you need maximum capacity for server applications. It fits users who value stability and large memory pools over faster clock speeds.
SK Hynix 32GB DDR4-2133 RDIMM
Best for: Legacy server upgrades needing ECC memory
- Total Capacity
- 32GB
- Memory Speed
- 2133 MHz
- Module Configuration
- 1x32GB
- Form Factor
- U-DIMM
- ECC Support
- ECC RDIMM
- Dimensions
- 5.25 × 0.16 × 1.21 inches
View on Amazon: SK Hynix 32GB DDR4-2133 RDIMM Affiliate link
This SK Hynix module offers 32GB of DDR4 memory running at 2133MHz. It features ECC support and uses the RDIMM form factor, making it suitable for server environments that require data integrity. The compact physical dimensions allow it to fit into standard server slots. You should choose this if you need reliable, error-correcting memory for older server hardware that supports DDR4-2133 speeds.
Pros
- 32GB capacity for substantial memory allocation
- ECC support ensures data accuracy
- RDIMM form factor for server compatibility
- 2133MHz speed standard for DDR4 systems
Cons
- Lower 2133MHz speed compared to 2400MHz alternatives
- Single stick size may require matching pairs
- Server-specific RDIMM limits desktop use
Good fit if
- You need ECC memory for server stability
- You are upgrading older DDR4-2133 systems
- You require 32GB per stick capacity
Skip if
- You need faster DDR4-2400MHz speeds
- You are building a standard desktop PC
- You require non-ECC UDIMM modules
Verdict: SK Hynix 32GB DDR4-2133 ECC RDIMM fits servers needing reliable, error-correcting memory at standard DDR4 speeds. It is ideal for legacy systems requiring 32GB sticks with ECC protection.
SK Hynix 32GB DDR4 ECC Registered Server RAM
Best for: Single 32GB server ECC/Reg upgrades
- Total Capacity
- 32 GB
- Memory Speed
- 2133MHz
- CAS Latency
- CL15
- ECC Support
- ECC/Reg
- Compatible Device
- Server
- Size
- 32GB
View on Amazon: SK Hynix 32GB DDR4 ECC Registered Server RAM Affiliate link
This SK Hynix module provides 32GB of DDR4 memory running at 2133MHz. It features ECC/Reg technology and a CL15 latency, making it suitable for server environments. You need this specific configuration for systems requiring registered ECC memory. The 32GB capacity offers a solid foundation for enterprise workloads. It is a single stick designed for compatibility with compatible server motherboards.
Pros
- 32GB capacity
- DDR4-2133MHz speed
- ECC/Reg support
- CL15 latency
Cons
- Lower 2133MHz speed compared to 2400MHz alternatives
- Single stick limits dual-channel performance
- Server-only compatibility
Good fit if
- You need a single 32GB stick for a server
- Your system requires DDR4-2133MHz specifically
- You need ECC/Reg memory
Skip if
- You want faster 2400MHz speeds
- You need a dual-channel kit
- You are building a consumer desktop
Verdict: SK Hynix 32GB DDR4-2133 ECC/Reg is a practical option for servers requiring a single 32GB ECC/Reg stick at 2133MHz. It fits users who prioritize ECC/Reg support over higher speeds or dual-channel configurations.
SK Hynix 32GB DDR4-2400 ECC REG
Best for: Server memory upgrades requiring ECC
- Total Capacity
- 32GB
- Memory Speed
- 2400MHz
- Form Factor
- DIMM
- ECC Support
- ECC REG
- Compatible Device
- Server
- Dimensions
- 6 × 1 × 0.2 inches
View on Amazon: SK Hynix 32GB DDR4-2400 ECC REG Affiliate link
This SK Hynix module offers 32GB of DDR4 memory running at 2400MHz. It features ECC and registered dual-rank architecture, making it suitable for server environments. The physical dimensions are 6 x 1 x 0.2 inches. You get genuine Hynix chips designed for server use. This kit provides stable performance for systems requiring error-correcting code support and registered memory modules.
Pros
- 32GB capacity
- DDR4-2400 speed
- ECC support
- Registered dual rank
- Genuine Hynix chips
Cons
- Server-only compatibility
- Single stick capacity
- No CL timing listed
Good fit if
- You need ECC memory for a server
- You require registered dual-rank DIMMs
- You want genuine Hynix chips
Skip if
- You are building a consumer desktop
- You need non-ECC memory
- You require laptop SODIMM modules
Verdict: SK Hynix 32GB DDR4-2400 ECC REG is a solid choice for server builds needing registered memory. It fits users who prioritize ECC stability and genuine Hynix components over consumer-grade flexibility.
Samsung 32GB DDR4-2400 ECC Registered Server RAM
Best for: Supermicro server memory upgrades
- Total Capacity
- 32GB
- Memory Speed
- 2400MHz
- ECC Support
- LP ECC REG
- Compatible Device
- Server
- Dimensions
- 6 × 4 × 0.5 inches
- Weight
- 1.6 ounces
View on Amazon: Samsung 32GB DDR4-2400 ECC Registered Server RAM Affiliate link
This Samsung server memory module offers 32GB of capacity at a DDR4-2400 speed. It features registered ECC technology to ensure data integrity for critical workloads. The module is Supermicro certified, indicating compatibility with specific server hardware. You will find this stick useful for upgrading enterprise systems that require reliable, error-correcting memory. The physical dimensions are standard for a DIMM, fitting into compatible server slots.
Pros
- 32GB capacity for high memory demands
- DDR4-2400 speed for solid performance
- Registered ECC for data reliability
- Supermicro certified for server compatibility
Cons
- Lower speed than the 2400MHz SK Hynix alternative
- Single stick format limits dual-channel pairing
- Server-only use prevents desktop installation
Good fit if
- You need Supermicro certified server memory
- You require registered ECC for stability
- You are upgrading a compatible server
Skip if
- You want desktop computer memory
- You need faster than 2400MHz speed
- You are building a gaming PC
Verdict: Samsung 32GB DDR4-2400 ECC Reg is a stable choice for Supermicro server upgrades. It suits IT professionals who prioritize certified compatibility and error correction over raw speed.
Specifications side by side
| Spec | SK Hynix 32GB DDR4-2133MHz ECC | A-Tech 32GB DDR4-2133 ECC RDIMM | Kingston 64GB DDR4 ECC REG Server Kit | SK Hynix 32GB DDR4-2133 RDIMM | SK Hynix 32GB DDR4 ECC Registered Server RAM | SK Hynix 32GB DDR4-2400 ECC REG | Samsung 32GB DDR4-2400 ECC Registered Server RAM |
|---|---|---|---|---|---|---|---|
| Total Capacity | 32GB | 32GB | 64GB | 32GB | 32 GB | 32GB | 32GB |
| Memory Speed | 2133MHz | 2133 MHz | 2133MHz | 2133 MHz | 2133MHz | 2400MHz | 2400MHz |
| CAS Latency | not stated | not stated | CL15 | not stated | CL15 | not stated | not stated |
| Voltage | not stated | 1.2V | not stated | not stated | not stated | not stated | not stated |
| Module Configuration | not stated | 1x32GB | 4x16GB | 1x32GB | not stated | not stated | not stated |
| Form Factor | not stated | RDIMM | DIMM | U-DIMM | not stated | DIMM | not stated |
| ECC Support | ECC | ECC | ECC Reg | ECC RDIMM | ECC/Reg | ECC REG | LP ECC REG |
| Compatible Device | not stated | not stated | Server | not stated | Server | Server | Server |
| Size | 32GB | 32GB | 64GB | 32GB | 32GB | 32GB | 32GB |
| Dimensions | not stated | 5.25 × 1.23 × 0.15 inches | 13 × 4.5 × 0.1 inches | 5.25 × 0.16 × 1.21 inches | not stated | 6 × 1 × 0.2 inches | 6 × 4 × 0.5 inches |
| Weight | not stated | not stated | 0.35 ounces | 1.12 ounces | not stated | not stated | 1.6 ounces |
| Color | Multicolor | not stated | Multicolor | not stated | not stated | Multicolor | Black |
| Model | AMZ: HMA84GR7MFR4N-TF.Hynix | M393A4K40BB0-CPB-ATC | KVR21R15D4K4/64 | HMA84GL7MMR4N-TF | not stated | HMA84GR7MFR4N-UH | M393A4K40BB1-CRC |
Frequently asked questions
Which alternative offers the lowest voltage for my server build?
The A-Tech 32GB DDR4-2133 ECC RDIMM operates at 1.2V. This matches the standard voltage for DDR4 memory. It is designed to replace specific Samsung server modules. You get stable performance with exact 2Rx4 compatibility. This makes it a practical choice for systems requiring precise voltage regulation.
Can I upgrade to 64GB with these alternatives?
Yes, the Kingston 64GB DDR4 ECC REG Server Kit provides double the capacity. It runs at 2133MHz with CL15 latency. This kit suits users who need large memory pools for server applications. It prioritizes stability and high capacity over faster clock speeds. You gain significant storage for demanding workloads.
Do these modules support error correction for data integrity?
All listed alternatives support ECC. This feature detects and corrects data errors. The SK Hynix and Samsung options are registered, adding stability for server environments. The A-Tech module also includes ECC. You benefit from reliable data handling. This is essential for systems where uptime and accuracy are critical.
Is there an option with higher speed than 2133MHz?
The SK Hynix 32GB DDR4-2400 ECC REG runs at 2400MHz. The Samsung 32GB DDR4-2400 ECC Registered Server RAM also offers this speed. These are faster than the original 2133MHz module. They provide better performance for compatible server builds. You gain increased bandwidth without sacrificing ECC stability.
Which alternative is best for legacy server upgrades?
The SK Hynix 32GB DDR4-2133 RDIMM is ideal for legacy systems. It provides reliable error-correcting memory at standard speeds. This module fits servers needing 32GB sticks with ECC protection. You get a direct replacement for older hardware. It ensures compatibility while maintaining the stability required for legacy server operations.
Are there single-stick options for easy installation?
Several options are single 32GB sticks. The SK Hynix 32GB DDR4 ECC Registered Server RAM is a practical single-stick choice. It fits users needing one module at 2133MHz. You can upgrade quickly without matching pairs. This is useful for systems that do not require dual-channel configurations or balanced memory layouts.