Double Data Rate Synchronous Dynamic Random-Access Memory is a double data rate (DDR) synchronous dynamic random-access memory (SDRAM) class of memory integrated circuits used in computers. DDR SDRAM, also retroactively called DDR1 SDRAM, has been superseded by DDR2 SDRAM, DDR3 SDRAM, DDR4 SDRAM and DDR5 SDRAM. None of its successors are forward or backward compatible with DDR1 SDRAM, meaning DDR2, DDR3, DDR4 and DDR5 memory modules will not work in DDR1-equipped motherboards, and vice versa.
A DIMM, commonly called a RAM stick, comprises a series of dynamic random-access memory integrated circuits. These memory modules are mounted on a printed circuit board and designed for use in personal computers, workstations, printers, and servers. They are the predominant method for adding memory into a computer system. The vast majority of DIMMs are standardized through JEDEC standards, although there are proprietary DIMMs. DIMMs come in a variety of speeds and sizes, but generally are one of two lengths - PC which are 133.35 mm (5.25 in) and laptop (SO-DIMM) which are about half the size at 67.60 mm (2.66 in).
Rambus DRAM (RDRAM), and its successors Concurrent Rambus DRAM (CRDRAM) and Direct Rambus DRAM (DRDRAM), are types of synchronous dynamic random-access memory (SDRAM) developed by Rambus from the 1990s through to the early 2000s. The third-generation of Rambus DRAM, DRDRAM was replaced by XDR DRAM. Rambus DRAM was developed for high-bandwidth applications and was positioned by Rambus as replacement for various types of contemporary memories, such as SDRAM.
Double Data Rate 2 Synchronous Dynamic Random-Access Memory is a double data rate (DDR) synchronous dynamic random-access memory (SDRAM) interface. It superseded the original DDR SDRAM specification, and was itself superseded by DDR3 SDRAM. DDR2 DIMMs are neither forward compatible with DDR3 nor backward compatible with DDR.
PNY Technologies, Inc., doing business as PNY, is an American manufacturer of flash memory cards, USB flash drives, solid state drives, memory upgrade modules, portable battery chargers, computer locks, cables, chargers, adapters, and consumer and professional graphics cards. The company is headquartered in Parsippany-Troy Hills, New Jersey.
Transcend Information, Inc. is a Taiwanese company headquartered in Taipei, Taiwan that manufactures and distributes memory products. Transcend deals in over 2,000 products including memory modules, flash memory cards, USB flash drives, portable hard drives, multimedia products, solid-state drives, dashcams, body cameras, personal cloud storage, card readers and accessories.
Double Data Rate 3 Synchronous Dynamic Random-Access Memory is a type of synchronous dynamic random-access memory (SDRAM) with a high bandwidth interface, and has been in use since 2007. It is the higher-speed successor to DDR and DDR2 and predecessor to DDR4 synchronous dynamic random-access memory (SDRAM) chips. DDR3 SDRAM is neither forward nor backward compatible with any earlier type of random-access memory (RAM) because of different signaling voltages, timings, and other factors.
Lexar International is a brand of flash memory products manufactured by the Chinese memory company Longsys. The Lexar "JumpDrive" trademark was often used synonymously with the term USB flash drives when the technology was first adopted.
Corsair Gaming, Inc. is an American computer peripherals and hardware company based in Milpitas, California. Previously Corsair Components and Corsair Memory, it was incorporated in California in January 1994 as Corsair Microsystems and reincorporated in Delaware in 2007. It designs and sells a range of computer products, including high-speed DRAM modules, ATX power supplies (PSUs), USB flash drives (UFDs), CPU/GPU and case cooling, gaming peripherals, computer cases, solid-state drives (SSDs), and speakers.
Kingston Technology Corporation is an American multinational computer technology corporation that develops, manufactures, sells and supports flash memory products, other computer-related memory products, as well as the HyperX gaming division. Headquartered in Fountain Valley, California, United States, Kingston Technology employs more than 3,000 employees worldwide as of Q1 2016. The company has manufacturing and logistics facilities in the United States, United Kingdom, Ireland, Taiwan, and China.
HyperDrive (HD) is a series of RAM-based solid-state drives invented by Accelerated Logic B.V. employee Pascal Bancsi, who partnered with the British company HyperOs Systems, who manufactured the retail product. The HyperDrive interfaces with and is recognized by computer systems as a standard hard drive.
In computing, a memory module or RAM stick is a printed circuit board on which memory integrated circuits are mounted. Memory modules permit easy installation and replacement in electronic systems, especially computers such as personal computers, workstations, and servers. The first memory modules were proprietary designs that were specific to a model of computer from a specific manufacturer. Later, memory modules were standardized by organizations such as JEDEC and could be used in any system designed to use them.
sTec is an American computer data storage technology company headquartered in California, with research and development, sales, support or manufacturing sites in China, India, Japan, Malaysia, Silicon Valley (USA), and Taiwan.
The Open NAND Flash Interface Working Group is a consortium of technology companies working to develop open standards for NAND flash memory and devices that communicate with them. The formation of ONFI was announced at the Intel Developer Forum in March 2006.
The Skytone Alpha-400 is a Linux-based low-cost netbook with a 7 in 800×480 LCD screen, introduced in 2008. Its measurements (length×width×depth) are 210×140×32 mm and it weighs 0.65 kg.
Double Data Rate 4 Synchronous Dynamic Random-Access Memory is a type of synchronous dynamic random-access memory with a high bandwidth interface.
Sam440, also known by Sam or its codename Samantha, is a line of modular motherboards produced by the Italian company ACube Systems Srl. The Sam440ep version is a motherboard based on the PowerPC 440EP system-on-a-chip processor which includes a double-precision FPU. It is made by AMCC. Their primary targets are the industrial and embedded markets, running operating systems such as Linux and AmigaOS 4.
Silicon Power Computer & Communications Incorporated, commonly referred to as Silicon Power and as SP, is an international brand and a Taiwan-based manufacturer of flash memory products, including flash memory cards, USB flash drives, portable hard drives, DRAM modules, card readers, solid state drives, USB adapters, and other industrial grade computer products.
ADATA Technology Co., Ltd. is a Taiwanese fabless memory, storage and computer case manufacturer, founded in May 2001 by Simon Chen (陳立白). Its main product line consists of DRAM modules, USB Flash drives, hard disk drives, solid state drives, memory cards and mobile accessories. ADATA is also expanding into new areas, including robotics and electric powertrain systems. In addition to its main ADATA brand, the company also sells PC gaming hardware and accessories under its XPG brand.
ATP Electronics was a manufacturer of NAND based storage DRAM modules founded in Silicon Valley in 1991, headquarter was later moved to Taipei, Taiwan. ATP’s product line consist of Industrial grade products, such as SSD, SD / microSD memory cards, along with DRAM products that are used in business industries across Networking, Enterprise Mobility, Automotive industry, Military, IPC/Embedded Systems, Health care, Gaming and The Internet of Things (IoT). Intel's CMTL, one of the largest third party testing lab for Intel server platforms, only recommended two memory modules companies to purchase motherboards in Taiwan, one noted to be ATP Electronics.
