Computer System Unit

At Click Computer, we pride ourselves on providing top-notch computer system units that are designed to meet the needs of various users, from casual gamers to seasoned professionals. A computer system unit, often referred to as the “tower” or “case,” is where all the magic happens. This essential piece of hardware houses the vital components that allow your computer to function seamlessly. Understanding the components within a system unit helps you make informed decisions when purchasing or upgrading your system. In this article, we will explore the key parts of a computer system unit and their functions.

Central Processing Unit (CPU)

The Central Processing Unit (CPU), often called the processor, is one of the most critical components of any computer system unit. It acts as the brain of the computer, executing instructions and managing tasks that keep your system running smoothly. Whether you’re gaming, browsing the internet, or using software applications, the CPU is at the core of it all.

Modern CPUs come in different models and performance levels, from entry-level processors ideal for everyday tasks to high-end processors built for intensive applications like video editing or 3D rendering. Popular CPU manufacturers include Intel and AMD, both known for producing reliable and powerful processors.

2. Motherboard

Another crucial component of a computer system unit is the Motherboard. As the central hub, the motherboard connects all the components of your computer, allowing them to communicate and work together. It holds the CPU, RAM, storage drives, and other hardware components, ensuring they all function in harmony.

Motherboards come in various sizes, typically defined as ATX, Micro-ATX, and Mini-ITX. Your choice of motherboard will depend on the size of the case and the number of features you need. For instance, some motherboards offer more ports for external devices, additional PCIe slots for expansion cards, or better cooling options. At Click Computer, we offer motherboards suited to different needs, from basic setups to advanced configurations.

3. Power Supply Unit (PSU)

The Power Supply Unit (PSU) is responsible for delivering power to the various components in the computer system unit. Without a reliable PSU, your computer would not be able to function. The PSU converts the electricity from your wall outlet into a form that can be used by your computerā€™s internal components. It distributes the right amount of power to each part, ensuring smooth and efficient operation.

When choosing a PSU, it’s essential to ensure that it provides enough wattage to support all your components. A high-performance system with a powerful CPU, GPU, and multiple storage drives will require more power than a basic office computer. At Click Computer, we carry PSUs that cater to a wide range of needs, ensuring your system gets the power it requires.

4. Random Access Memory (RAM)

Random Access Memory (RAM) plays a vital role in determining the speed and efficiency of your computer. RAM is the temporary memory that your computer uses to store data that is actively being used or processed. The more RAM you have, the more programs and tasks your computer can handle simultaneously without slowing down.

For instance, if you’re a heavy multitasker or a gamer, having more RAM ensures that your system can handle demanding applications without lag. Whether you need 8GB for light office work or 32GB for gaming and video editing, Click Computer offers a wide range of RAM options to enhance your computer’s performance.

5. Storage Drive (HDD/SSD)

The Storage Drive is where all your files, applications, and operating system are stored. There are two main types of storage drives: Hard Disk Drives (HDD) and Solid-State Drives (SSD).

  • HDDs have been around for a long time and offer large storage capacities at affordable prices. However, they are slower than SSDs.
  • SSDs are faster and more reliable than HDDs, making them an excellent choice for those who want speed and efficiency. SSDs have no moving parts, which makes them more durable and energy-efficient, contributing to faster boot times and quicker access to your files.

At Click Computer, we offer both HDDs and SSDs in various capacities to suit your storage needs. Whether you’re storing large files like videos and photos or just need a place for your operating system and apps, we have the right solution for you.

Why Choose us?

A well-built computer system unit is essential for getting the best performance out of your computer. At Click Computer, we understand the importance of high-quality components, from the Central Processing Unit (CPU) and Motherboard to the Power Supply Unit (PSU), Random Access Memory (RAM), and Storage Drive. Each part plays a unique role in creating a fast, efficient, and reliable machine.

Whether youā€™re building a custom rig from scratch or looking to upgrade an existing system, Click Computer has everything you need. Our wide selection of components ensures that you’ll find the perfect parts to fit your requirements and budget. Visit us today to explore our offerings and build a system unit that powers your digital life!

Showing 1–12 of 21 results

Dell Optiplex 3000 SFF Intel Core i5-12500 – 32GB RAM – 1TB SSD – FULL SET – 27″ Full HD

Original price was: R29,999.Current price is: R19,999.
What's in the Box: - Dell Optiplex 3000 SFF Desktop (Certified Refurbished) - 27" Full HD Monitor - Power Cables - USB Keyboard and Mouse - DisplayPort Cable - User Documentation Warranty: This product comes with a 24-month carry-in warranty provided by Click Computers, covering all hardware components. Warranty claims do not cover malicious damage, software and data issues, lightning damage, and power surges. The Dell Optiplex 3000 SFF Full Set is an excellent choice for users who need a powerful, compact desktop paired with a large and vibrant display, ideal for both professional and personal use.

DELL OptiPlex 3020 Core i7 – 4770 – 16GB RAM DDR3 – 512GB SSD + 500GB HDD – (CERTIFIED REFURBISHED) – FULL SET – 24″

Original price was: R11,999.Current price is: R6,399.
Whatā€™s in the Box: - 1 x Dell OptiPlex 3020 MT Desktop - 1 x Monitor (24") - 1 x USB Keyboard - 1 x USB Mouse - 2 x Power Cables Warranty: This product comes with a 24-month carry-in warranty, provided by Click Computers, covering all hardware components. Certified to meet ISO 9001 standards for quality assurance.

Dell OptiPlex 3050 Intel I5 7th Gen 16GB RAM 512GB SSD+500GB HDD + 22ā€³ LCD (CERTIFIED REFURBISHED)

Original price was: R8,999.Current price is: R4,999.
  • Refurbished Dell OptiPlex 3050 Core i5 Mini Tower PC
  • 7th Generation Intel Core i5-7100 Processor (3M Cache, 3.90 GHz, 2 cores)
  • 16GB DDR4 2400MHz RAM (2 x 4GB, expandable up to 32GB)
  • 512GB SSD M.2 PCIe NVMe
  • 500GB 7200RPM Hard Drive
  • DVD-RW Drive
  • Intel HD Graphics 630
  • Ethernet
  • Windows 10 Pro 64-Bit

DELL OPTIPLEX 5050 Intel Core i5 7TH GEN – 16GB RAM – 512GB SSD + 500GB HDD – (CERTIFIED REFURBISHED) -19″SCREEN

Original price was: R7,999.Current price is: R5,399.
Whatā€™s in the Box: - 1 x Dell OptiPlex 5050 SFF Desktop - 1 x 19" Monitor - 1 x USB Keyboard - 1 x USB Mouse - 2 x Power Cables Warranty: This product includes a 24-month carry-in warranty, provided by Click Computers, covering all hardware components. Certified to meet ISO 9001 standards for quality assurance.

Dell Optiplex 7010 Desktop INTEL i5 4TH GEN 16GB RAM 512GB SSD-19″ LCD (CERTIFIED REFURBISHED)

Original price was: R6,799.Current price is: R4,599.
Warranty: Includes a 24-month warranty for peace of mind (ISO 9001 Certified). What's in the box: - 1x Dell Optiplex 7010 Desktop (Certified Refurbished) - 1x 19" LCD Monitor - 1x Power Cable - 1x Keyboard and Mouse Set

DELL OPTIPLEX 7010 Intel Core i5 – 3RD GEN – 8GB RAM – 512GB SSD – (CERTIFIED REFURBISHED) – 19″ WIDE SCREEN

Original price was: R6,999.Current price is: R3,999.
Whatā€™s in the Box: - 1 x Dell OptiPlex 7010 SFF Desktop - 1 x 19" Wide Screen Monitor - 1 x USB Keyboard - 1 x USB Mouse - 2 x Power Cables Warranty: This product includes a 24-months warranty provided by Click Computers, covering all hardware components. Certified to meet ISO 9001 standards for quality assurance.

Dell OptiPlex 7050 SFF Intel CORE I7 7th Gen 16GB 512GB SSD+19ā€³ LCD (CERTIFIED REFURBISHED)

Original price was: R11,999.Current price is: R7,999.
Specifications:
  • Refurbished Dell OptiPlex 7050 SFF
  • 7th Gen Intel Core i7-7700 Processor (3.4GHz, up to 4.00 GHz, 8M Cache, 4 Cores, 8 Threads)
  • 16GB DDR3 RAM (2 x 4GB, 2 x Open slots)
  • 512GB SSD 2.5" for blazing-fast storage
  • Intel HD Graphics 530 for smooth visuals
  • DVD Writer for your multimedia needs
  • Pre-installed with Windows 10 Pro for seamless productivit What's in the box: 1x - Dell OptiPlex 7050 SFF Desktop 1x - 19ā€³ LCD Monitor 2x - Power cables 1x - USB Keyboard and Mouse Warranty: This product comes with a 24-months Click Computers warranty and is ISO 9001 certified, ensuring peace of mind and reliable performance.

Dell Optiplex 7080 Combo: Intel Core I5, 16GB RAM, 256GB NVMe SSD+20ā€³SCREEN

Original price was: R14,999.Current price is: R14,199.
Processor:
  • Intel Core i5-10500 processor
  • Clock speed: 3.20GHz
Memory:
  • 16GB RAM
Storage:
  • 256GB NVMe SSD
Monitor:
  • 20ā€³ Dell Monitor

DELL OPTIPLEX 9020 i7 4TH GEN – 16GB RAM 512GB SSD – (CERTIFIED REFURBISHED) – FULL SET + 19″

Original price was: R9,999.Current price is: R5,999.
Whatā€™s in the Box: - 1 x Dell OptiPlex 9020 SFF Desktop - 1 x Monitor (19") - 1 x USB Keyboard - 1 x USB Mouse - 2 x Power Cables Warranty: This product comes with a 24-month carry-in warranty, provided by Click Computers, covering all hardware components. Certified to meet ISO 9001 standards for quality assurance.

DELL OptiPlex 9020 SFF Intel Core i5 – 4590 – 16GB RAM 512GB SSD – (CERTIFIED REFURBISHED) -19″ LCD (FULL SET)

Original price was: R6,999.Current price is: R3,399.
Whatā€™s in the Box: - 1 x Dell OptiPlex 9020 SFF Desktop - 1 x 19" LCD Monitor - 1 x USB Keyboard - 1 x USB Mouse - 2 x Power Cables Warranty: This product comes with a 24-month carry-in warranty, provided by Click Computers, covering all hardware components. Certified to meet ISO 9001 standards for quality assurance.

Dell Optiplex 990 i5 2nd Gen – 16GB RAM – 256GB SSD + 500GB HDD – (CERTIFIED REFURBISHED) – FULL SET – 19″

Original price was: R7,499.Current price is: R3,999.
Whatā€™s in the Box: - 1 x Dell Optiplex 990 SFF Desktop - 1 x 19" Monitor - 1 x USB Keyboard - 1 x USB Mouse - 2 x Power Cables Warranty: This product comes with a 24-month carry-in warranty, provided by Click Computers, covering all hardware components. Certified to meet ISO 9001 standards for quality assurance.

Dell Optiplex 990 i5 2nd Gen – 16GB RAM 512GB SSD + 19″ MONITOR (FULL SET) – (CERTIFIED REFURBISHED)

Original price was: R7,999.Current price is: R4,299.
Whatā€™s in the Box: - 1 x Dell OptiPlex 990 - 1 x Monitor (Mixed Brands Only) - 1 x Power Cable - 1 x VGA Cable - 1 x NEW Keyboard and Mouse **Certifications and Warranty: - **ISO 9001 Certified:** All our machines are rigorously tested to ensure quality and reliability. Experience the reliability and performance of this refurbished Dell OptiPlex 990, complete with essential accessories and backed by a 24-month warranty for added peace of mind.