{"product_id":"crucial-16gb-ddr4-2666-sodimm-mac","title":"Crucial 16GB DDR4-2666 SODIMM for Mac CT16G4S266M | PC4-21300 | CL19 | 1.2V | 260-Pin Non-ECC Unbuffered | 2Rx8 Dual-Rank | Apple SPD Programmed | iMac 2019-2020 Compatible | Plug \u0026 Play","description":"\u003cdiv\u003e\n\u003ch2\u003eCrucial 16GB DDR4-2666 SODIMM for Mac — Apple-Engineered Memory Upgrade\u003c\/h2\u003e\n\n\u003cp\u003eThe Crucial 16GB DDR4-2666 SODIMM for Mac (CT16G4S266M) is a specialized memory module engineered specifically for Apple Mac systems, featuring custom SPD programming, component density specifications, and timing parameters that comply with Apple's strict memory controller requirements. Unlike generic DDR4-2666 modules that may run unstably on Mac systems, this module is purpose-tested by Crucial to deliver flawless compatibility with Apple's iMac (2019-2020) and Mac mini (2018-2020) Intel-based systems. Manufactured by Crucial-by-Micron with over a decade of experience producing Apple-compatible memory, this 16GB single module operates at JEDEC standard 2666 MT\/s with CL19 timings — the perfect upgrade path for Mac users who want guaranteed compatibility and Crucial's renowned reliability.\u003c\/p\u003e\n\n\u003ch3\u003e🚀 Performance Specifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCapacity:\u003c\/strong\u003e 16GB single module\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMemory Type:\u003c\/strong\u003e DDR4 SDRAM\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpeed:\u003c\/strong\u003e 2666 MT\/s (PC4-21300)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLatency:\u003c\/strong\u003e CL19-19-19\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVoltage:\u003c\/strong\u003e 1.2V (DDR4 standard)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eForm Factor:\u003c\/strong\u003e 260-pin SODIMM (Notebook\/Mac mini\/iMac)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConfiguration:\u003c\/strong\u003e 2Rx8 (Dual-Rank)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eECC:\u003c\/strong\u003e Non-ECC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBuffering:\u003c\/strong\u003e Unbuffered\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecialization:\u003c\/strong\u003e Apple Mac compatibility — Apple-specific SPD programming\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e Crucial by Micron\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003e🍎 Why Mac-Specific Memory Matters\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eApple SPD Programming:\u003c\/strong\u003e The Serial Presence Detect chip is programmed with Apple-specific values that the Mac firmware expects — generic PC memory may fail to initialize properly\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVerified Component Densities:\u003c\/strong\u003e Apple computers often have very specific memory requirements including particular component densities that Mac BIOS\/firmware checks for\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMac-Validated Timings:\u003c\/strong\u003e Specific timing parameters tested and verified to work with Apple's memory controller in iMac and Mac mini systems\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePlug \u0026amp; Play on Mac:\u003c\/strong\u003e Insert the module, boot the Mac, and macOS recognizes the new memory immediately — no firmware tricks required\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAvoid Boot Issues:\u003c\/strong\u003e Generic DDR4-2666 modules sometimes cause Macs to refuse to boot, beep error codes, or run in degraded modes — Mac-specific memory eliminates these issues\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCrucial's Apple Expertise:\u003c\/strong\u003e Crucial has been manufacturing Mac-compatible memory for over a decade with proven track record\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003e⚡ Performance Benefits\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMassive Capacity Upgrade:\u003c\/strong\u003e 16GB single module enables upgrading Mac mini and iMac systems with two slots to 32GB total (paired)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIndustry-Standard Speed:\u003c\/strong\u003e 2666 MT\/s matches the native speed of supported Mac systems\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReliable JEDEC Compliance:\u003c\/strong\u003e Pure JEDEC standard module — no XMP, no overclocking, just rock-solid Mac reliability\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDirect From Micron:\u003c\/strong\u003e Manufactured by one of the world's three largest DRAM fabricators\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDual-Rank Performance:\u003c\/strong\u003e 2Rx8 configuration offers improved memory access patterns for many workloads\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandard 1.2V Operation:\u003c\/strong\u003e No excessive heat or power consumption — ideal for Mac mini's compact thermal design\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003e🎨 Design — Standard SODIMM Profile\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eForm Factor:\u003c\/strong\u003e Industry-standard 260-pin SODIMM — fits Mac mini (2018-2020) and 27-inch iMac (2019-2020) memory slots\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePCB Color:\u003c\/strong\u003e Standard green PCB with Crucial branding label\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBare PCB Design:\u003c\/strong\u003e No heat spreader (not needed at standard JEDEC operation)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCrucial Mac Branding:\u003c\/strong\u003e Module is identified as Mac-compatible on the label\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003e🛡️ Build Quality \u0026amp; Reliability\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMicron-Manufactured Chips:\u003c\/strong\u003e Direct from one of the top three DRAM fabricators in the world\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApple-Compatibility Tested:\u003c\/strong\u003e Specifically tested by Crucial against Apple's memory controller requirements\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRigorous Multi-Stage Testing:\u003c\/strong\u003e Each module is tested at the chip level and module level for long-term reliability\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eJEDEC Compliant:\u003c\/strong\u003e Adheres strictly to the official JEDEC DDR4 specification with Apple-specific SPD additions\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBacked by Micron's 45+ Years of Manufacturing Excellence:\u003c\/strong\u003e Industry-leading DRAM expertise from chip design through final module assembly\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCrucial's Decade-Plus Mac Experience:\u003c\/strong\u003e Proven track record of Apple-compatible memory development\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003e💻 Apple Mac Compatibility\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eiMac 27-inch (Retina 5K, 2019):\u003c\/strong\u003e iMac 19,1 — fully verified compatible\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eiMac 27-inch (Retina 5K, 2020):\u003c\/strong\u003e iMac 20,1 \/ 20,2 — fully verified compatible\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMac mini (2018):\u003c\/strong\u003e Macmini8,1 with Intel 8th Gen Core processors\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMac mini (2020 Intel):\u003c\/strong\u003e Macmini8,1 — Intel 8th Gen variant\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eiMac 21.5-inch (2019\/2020):\u003c\/strong\u003e Some configurations supporting user-upgradable memory\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNOT Compatible With:\u003c\/strong\u003e Apple Silicon Macs (M1\/M2\/M3\/M4) — these use unified memory soldered to the SoC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNOT Compatible With:\u003c\/strong\u003e MacBook Pro \/ MacBook Air (memory is soldered in 2018-2020 models)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eForm Factor Match:\u003c\/strong\u003e 260-pin DDR4 SODIMM — fits Mac slots designed for SODIMM memory\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSingle-Module or Dual-Channel:\u003c\/strong\u003e Run as single 16GB module, or pair with another identical CT16G4S266M for 32GB dual-channel performance\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003e🎯 Best For\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eiMac 27-inch 2019\/2020 (Retina 5K) users upgrading from 8GB or 16GB factory configuration to 32GB+ total\u003c\/li\u003e\n\u003cli\u003eMac mini 2018\/2020 (Intel) users wanting more memory for productivity, development, or content creation\u003c\/li\u003e\n\u003cli\u003eMac users avoiding Apple's expensive memory upgrade pricing through DIY installation\u003c\/li\u003e\n\u003cli\u003eContent creators on Mac running Final Cut Pro, Logic Pro, Adobe Creative Suite\u003c\/li\u003e\n\u003cli\u003eSoftware developers running Xcode, Docker, virtualization on Intel Mac systems\u003c\/li\u003e\n\u003cli\u003ePhotographers using Lightroom, Capture One, Photoshop on iMac\u003c\/li\u003e\n\u003cli\u003eVideo editors needing more memory for 4K editing in Final Cut Pro or Premiere on Mac\u003c\/li\u003e\n\u003cli\u003eMac users who want a guaranteed-compatible memory upgrade without the risk of generic module incompatibility\u003c\/li\u003e\n\u003cli\u003eApple users who value reliability over experimentation with non-Mac-specific memory\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003e📋 Key Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e16GB single DDR4-2666 SODIMM module specifically engineered for Apple Mac systems (CT16G4S266M)\u003c\/li\u003e\n\u003cli\u003e2666 MT\/s PC4-21300 data rate with CL19-19-19 latency\u003c\/li\u003e\n\u003cli\u003eApple-specific SPD programming for guaranteed Mac firmware compatibility\u003c\/li\u003e\n\u003cli\u003e1.2V standard DDR4 operation\u003c\/li\u003e\n\u003cli\u003e260-pin standard DDR4 SODIMM form factor\u003c\/li\u003e\n\u003cli\u003e2Rx8 dual-rank configuration with x8 component density (DR x8)\u003c\/li\u003e\n\u003cli\u003eNon-ECC, unbuffered for consumer Mac compatibility\u003c\/li\u003e\n\u003cli\u003eJEDEC-compliant — Plug \u0026amp; Play with supported Mac systems\u003c\/li\u003e\n\u003cli\u003eAuto-downclocks gracefully on systems supporting only 2400 \/ 2133 MT\/s\u003c\/li\u003e\n\u003cli\u003eStandard green PCB with Crucial Mac branding\u003c\/li\u003e\n\u003cli\u003eCrucial-by-Micron quality with direct chip-level manufacturing\u003c\/li\u003e\n\u003cli\u003eCompatible with iMac 2019\/2020 (Retina 5K, 27-inch) and Mac mini 2018\/2020 Intel\u003c\/li\u003e\n\u003cli\u003eStandard SODIMM height — fits Mac mini's compact chassis and iMac memory bay\u003c\/li\u003e\n\u003cli\u003eNOT compatible with Apple Silicon (M1\/M2\/M3\/M4) Macs which use soldered unified memory\u003c\/li\u003e\n\u003cli\u003eCrucial's Apple-compatibility testing eliminates boot issues common with generic memory\u003c\/li\u003e\n\u003cli\u003eOver a decade of Crucial Mac-compatible memory engineering experience\u003c\/li\u003e\n\u003cli\u003eSKU: LRAM-CRUC-16G-DDR4-2666-MAC-OB-0155\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Crucial","offers":[{"title":"Default Title","offer_id":43964102279302,"sku":"LRAM-CRUC-16G-DDR4-2666-MAC-OB-0155","price":4000.0,"currency_code":"EGP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0625\/3543\/4374\/files\/20-156-228-S02.webp?v=1778080767","url":"https:\/\/squadrig.com\/products\/crucial-16gb-ddr4-2666-sodimm-mac","provider":"SQUADRIG || Maximum Power Minimal Prices","version":"1.0","type":"link"}