SAMSUNG M378A1G43D80-CPB Memory 2RX8S 8GB PC4-2133P-UB0-10 DDR4

( Brand: Samsung ), ( Manufacturer Part Number: M378A1G43D80-CPB ), ( Model: 8GB 2RX8 PC4-2133P-UB0-10 ), ( Form Factor: Rdimm ), ( Type: Ddr4 Sdram ), ( Total Capacity: 8 Gb ), ( Bus Speed: Pc4-2133p ), ( Memory Features: Ecc Memory, Registered )

Review SAMSUNG 8gb Ddr4 Memory

The **Samsung M378A1G43D80-CPB 8GB DDR4 Memory Module** is a high-performance, single-rank, unbuffered (UDIMM) memory kit designed to deliver exceptional speed, reliability, and efficiency for modern computing systems. Engineered with Samsung s cutting-edge DRAM technology, this 8GB module operates at a robust **PC4-2133P (DDR4-2133 MHz)** clock speed, ensuring seamless multitasking, faster data processing, and smoother performance in demanding applications such as gaming, content creation, and professional workloads. The **2Rx8 configuration** (two ranks with eight banks per rank) optimizes memory bandwidth and latency, allowing for improved cache utilization and reduced access times, which is particularly beneficial for systems running intensive tasks like video editing, 3D rendering, or large-scale simulations.

Built with **low-power, high-density DRAM chips**, this module adheres to strict quality and performance standards, making it an ideal choice for both desktop and server-grade systems that require a balance of speed and energy efficiency. The **UB0 (Unbuffered) architecture** ensures compatibility with a wide range of motherboards, including those supporting dual-channel configurations, where pairing two identical modules can significantly enhance system responsiveness. The **CPB (Commercial/Pro) designation** further underscores its durability, with robust thermal management and extended operational lifespan, making it suitable for both home and professional environments where reliability is paramount.

Whether upgrading an existing system or building a new high-performance PC, this Samsung DDR4 memory module offers a seamless blend of speed, stability, and compatibility. Its **2133 MHz clock speed** provides a noticeable boost over slower DDR4 variants, reducing load times and improving overall system fluidity, while the **8GB capacity** offers ample room for modern applications that demand substantial RAM allocation. With Samsung s reputation for innovation and precision engineering, this module is a dependable choice for users seeking a balance of performance and value in their memory upgrade.

The **Samsung M378A1G43D80-CPB** (8GB, 2Rx8, PC4-2133P-UB0-10 DDR4) is a widely used memory module, but its suitability depends on your specific system requirements. Below is a detailed breakdown of its pros and cons, followed by a conclusion and recommendation.

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### **Pros**

1. **Proven Reliability and Performance**

Samsung is a trusted brand in memory manufacturing, known for consistent quality and stability. This module is part of their **DDR4 U-DIMM** line, which is widely tested and compatible with most modern motherboards supporting DDR4.

2. **High-Speed Compatibility (PC4-2133)**

The **PC4-2133** rating translates to **2133 MHz** (2133 MT/s), which is a standard speed for many mid-range and high-end DDR4 systems. It is fast enough for most everyday tasks, gaming, and light content creation without requiring extreme overclocking.

3. **Low-Latency (CL15)**

The **CAS Latency (CL) of 15** is optimal for balanced performance, offering a good mix of speed and efficiency. Lower CL values (e.g., CL13 or CL14) are better for extreme overclocking, but CL15 is ideal for stock or slightly overclocked systems.

4. **Unbuffered (UDIMM) Design**

This is an **unbuffered (UDIMM)** module, meaning it lacks a register and is designed for single-channel or dual-channel setups in most consumer motherboards. It is not meant for server or workstation use (where registered ECC memory is standard), but it works perfectly for gaming PCs, office workstations, and general computing.

5. **Wide Availability and Affordability**

As a common memory kit, this module is easy to find in retail stores, online marketplaces, and bulk sales. Pricing is competitive, making it a cost-effective choice for upgrading existing systems.

6. **Compatibility with Most DDR4 Motherboards**

It supports **DDR4-2133** (and often DDR4-2400/2666 with minor tweaks), making it versatile for a broad range of motherboards. Check your motherboard s QVL (Qualified Vendor List) to ensure compatibility, but most **B450, B550, Z370, Z490, and X570** boards support it without issues.

7. **No Overclocking Required**

Unlike high-end memory kits (e.g., 3200MHz ), this module runs at its rated speed without requiring manual overclocking. This reduces the risk of instability and simplifies installation.

8. **Good for Budget Upgrades**

If you re upgrading an older system with DDR4 slots but limited budget, this kit provides a noticeable performance boost over slower DDR3 or DDR4-1600 modules.

---

### **Cons**

1. **Not Ideal for High-End Overclocking**

If you re building a system for extreme overclocking (e.g., 3600MHz ), this module is **not the best choice**. It lacks the speed and low-latency potential of higher-end kits (e.g., Samsung s **M378A1G43DB0-CTD** for 3200MHz or 3600MHz). You may need to pair it with a motherboard that supports higher speeds or settle for stock performance.

2. **Limited to 2133MHz (Unless Motherboard Allows Higher)**

While 2133MHz is sufficient for most users, it is **not the fastest option** available. If you re building a gaming or productivity rig, you might consider **DDR4-3200 or DDR4-3600** kits for better performance in memory-bound applications (e.g., video editing, 3D rendering).

3. **Single-Rank (2Rx8) Configuration**

This is a **single-rank (2Rx8)** module, meaning it has two 4GB chips. While this is standard for most consumer memory, it can lead to **slightly higher latency** compared to dual-rank (4Rx8) kits in multi-channel setups. However, the difference is negligible for most users.

4. **No ECC Support**

This is a **non-ECC (error-correcting code)** module, which means it lacks built-in error detection and correction. While this is fine for gaming and general use, it is **not suitable for servers, workstations, or applications requiring data integrity** (e.g., financial modeling, scientific computing).

5. **Potential Compatibility Issues with Some Motherboards**

While widely compatible, some **budget or older DDR4 motherboards** may not officially support 2133MHz and may default to a lower speed (e.g., 1866MHz). Always check your motherboard s manual or the manufacturer s QVL list to avoid issues.

6. **No RGB or Aesthetic Features**

This is a **plain black module** with no RGB lighting or premium packaging. If aesthetics are important to you, you might prefer kits with RGB (e.g., Corsair Vengeance, G.Skill FlareX).

7. **No Future-Proofing for Extreme Upgrades**

If you plan to upgrade to **DDR5** in the future, this DDR4 module will no longer be usable. However, this is a minor concern unless you re planning a long-term build.

---

### **Conclusion**

The **Samsung M378A1G43D80-CPB** is an **excellent choice for most users** who need a **reliable, affordable, and stable** DDR4 memory kit. It strikes a balance between performance and cost, making it ideal for:

- **Gaming PCs** (especially on mid-range or high-end motherboards).

- **Office/workstation use** (non-ECC, but sufficient for general tasks).

- **Budget upgrades** where you want to avoid overcomplicating things.

- **Systems where 2133MHz is the native speed** (e.g., Ryzen 5000/7000 with X570/B550 motherboards).

However, if you re building a **high-end gaming rig, content creation machine, or overclocking-heavy system**, you may want to consider **faster memory kits (3200MHz )** for better performance. Similarly, if you need **ECC support** (e.g., for servers or professional workloads), this module is not suitable.

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### **Recommendation**

- You need **8GB of DDR4 memory** for a **gaming PC, office computer, or general use**.

- Your motherboard supports **DDR4-2133** (or can run it at that speed).

- You want a **reliable, Samsung-branded** kit without overclocking hassles.

- You re on a **budget** and want a **proven, widely available** option.

- You want **higher speeds (3200MHz )** for better performance in memory-intensive tasks.

- You need **ECC support** for servers or professional use.

- You prefer **RGB or premium aesthetics** in your build.

- Your motherboard is **very old or budget-oriented** and may not officially support 2133MHz.

This is a **solid, no-frills memory kit** that delivers **consistent performance** for the majority of users. Unless you have specific high-end or ECC requirements, it is a **safe and recommended purchase**.

Details:

Pulled from working system. Samsung 8GB 2RX8 PC4-2133P-UB0-10 DDR4 Memory M378A1G43D80-CPB, You are buying on M378A1G43D80-CPB.

part #: m378a1g43d80 prices

• $18.00-$139.99

specifications servermemor:

• brand: Samsung
• mpn: M378a1g43d80-cpb
• model: 8gb 2rx8 Pc4-2133p-ub0-10
• form factor: Rdimm
• type: Ddr4 Sdram
• total capacity: 8 Gb
• bus speed: Pc4-2133p
• memory features: Ecc Memory, Registered

payments servermemor:

• other
• wallet: Paypal
• credit card: Diners-club

seller servermemor:

• rating: 100.0%
• city: Azusa, California
• # reviews: 1881

shipping servermemor:

• class: Standard
• carrier: USPS
• service: USPS Ground Advantage
• cost: $0.00
• transit: 5-11 Days
• type: Calculated

returns servermemor:

• policy: No Returns

general servermemor:

• Enterprise Networking, Servers > Server Components > Server Memory RAM
• condition: Used

offer servermemor:

• quantity: 1
• availability: In Stock
• started: February 20, 2026
• sold: 0
• options: Ship-to-home

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