Crucial 8GB PC4-21300 Memory

Specifies the electrical buffering and error‑checking characteristics of a memory bus or interface, such as whether it is unbuffered, registered (buffered), or non‑ECC buffered. This attribute indicates how data integrity and signal stability are handled on the bus.

The number of clock cycles that a memory module takes to complete a read operation after the address has been sent. It indicates how quickly data can be accessed from RAM and affects overall system performance, especially in high‑speed memory configurations.

The colour or combination of colours that a product is available in, expressed as common names such as "Black", "Silver" or comma‑separated lists like "Black, White". It indicates the visual appearance of the item for consumers.

The standardized designation that identifies the data transfer rate of a memory module, such as "PC3-14900" or "PC4-25600". It indicates the maximum bandwidth the module can achieve and is used by manufacturers to specify performance levels across different DDR generations.

Indicates whether a memory module or other data storage component supports error‑correcting code (ECC). A value of "Yes" means the device includes ECC protection, while a value of "No" indicates it does not.

Specifies the physical configuration or design of a product, such as ATX, Micro‑ATX, Mini‑ITX, tower, case with cover, etc. It describes how the device is built and what mounting or expansion options it supports.

The amount of memory that a single module can store, expressed as a digital capacity such as megabytes (MB) or gigabytes (GB). It indicates the storage potential of individual RAM modules, flash drives, or other removable memory components and allows users to compare sizes across products.

Indicates whether the memory modules in a device are buffered (registered) or unbuffered. Buffered memory includes an additional register that helps maintain signal integrity on systems with many memory sticks, often used in servers and workstations.

Indicates whether the memory module or system includes Error‑Correcting Code (ECC) support, which can detect and correct single‑bit errors during operation. A value of "Yes" means ECC is enabled; "No" indicates it is not present.

The total count of individual memory modules that are included together as a single product or kit. It indicates how many separate sticks are sold or shipped together, which can help customers understand the quantity they will receive and plan for installation or replacement.

The form or packaging of a memory module, such as DIMM, SO‑DIMM, USB flash drive, microSDHC, or other storage media. It indicates the physical format that determines compatibility with motherboards, devices, and accessories.

The amount of digital storage available in a device for holding data or program code, expressed as a data size such as megabytes (MB) or gigabytes (GB). It indicates how much information the component can hold at once and is commonly used to describe RAM modules, flash drives, SSDs, and other memory devices.

The maximum operating frequency of a memory module, expressed in hertz (Hz). It indicates how many cycles per second the RAM can perform and is typically reported as MHz or GHz. This value helps users compare performance potential across different memory types and system configurations.

The electrical voltage required by the RAM modules of a device, expressed in volts (V). It indicates the operating supply voltage that the memory needs to function correctly and safely.

The total count of electrical connection points (pins) on a component such as a memory module or connector. It indicates how many individual contacts are available for data, power, and ground signals, helping users assess compatibility with sockets and other hardware.

The length of time for which the manufacturer guarantees that the product will be free from defects in materials and workmanship, typically expressed in years or months.

Indicates whether the product supports XMP (eXtended Memory Profile), a feature that allows memory modules to run at higher speeds and timings than default settings. A value of "Yes" means the device can load an XMP profile from compatible RAM, while "No" indicates it cannot.