{"product_id":"cms-16gb-ddr4-21300-2666mhz-sodimm-for-lenovo-y540-reliable-upgrade","title":"CMS 16GB DDR4 21300 2666MHz SODIMM for Lenovo Y540 - Reliable Upgrade","description":"\u003cp\u003eIn this review of the CMS 16GB DDR4 21300 2666MHz SODIMM module, the bottom line is simple: it is a straightforward, cost-effective memory upgrade for owners of supported Lenovo Legion Y540 models who need a clean way to boost multitasking and memory headroom. The module is a single 16GB non-ECC SODIMM that runs at 2666 MHz and is sold by Computer Memory Solutions with a lifetime exchange or repair warranty when purchased directly, so reliability and compatibility with listed Y540 SKUs are the main reasons to consider this upgrade.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCapacity:\u003c\/strong\u003e A single 16GB SODIMM provides a substantial memory increase for gaming laptops and heavy multitasking without replacing existing modules.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpeed:\u003c\/strong\u003e DDR4-21300 at 2666 MHz offers responsive system performance and smoother application switching compared with slower memory.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eForm factor:\u003c\/strong\u003e The 260-pin SODIMM design is specifically suited to laptops such as the Lenovo Legion Y540 series for an easy physical fit.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatibility guarantee:\u003c\/strong\u003e Computer Memory Solutions guarantees compatibility with the listed Lenovo models, reducing the risk of mismatch or boot issues.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVoltage and timings:\u003c\/strong\u003e Standard 1.2V operation and CL19 timings keep power draw typical for modern laptop DDR4 modules while maintaining stable operation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e Lifetime exchange or repair warranty from the manufacturer provides added protection against manufacturing defects when purchased directly.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cp\u003eThe CMS 16GB SODIMM is aimed at Lenovo Legion Y540 (15) and Y540 (17) owners who want a simple route to more memory for gaming, streaming, and content creation on a laptop with two SODIMM sockets. It is a good match for users running a 64-bit operating system who need more than 8GB or want to upgrade to a single 16GB module now and add another later.\u003c\/p\u003e\n\u003cp\u003eUsers who should look elsewhere include those needing ECC memory, desktop DIMM modules, or memory faster than 2666 MHz; also, buyers who require matched dual-module kits for guaranteed dual-channel performance may prefer purchasing a two-module kit instead of a single stick.\u003c\/p\u003e\n\u003ch2\u003ePros \u0026amp; Cons\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003ePros\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSolid 16GB capacity that improves multitasking and modern game performance on supported laptops.\u003c\/li\u003e\n\u003cli\u003e2666 MHz DDR4 speed balances performance and compatibility with the listed Lenovo models.\u003c\/li\u003e\n\u003cli\u003eManufacturer warranty and compatibility guarantee reduce risk when upgrading.\u003c\/li\u003e\n\u003cli\u003eSODIMM 260-pin form factor fits laptop memory slots without modification.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSingle-module sales mean dual-channel performance depends on pairing with a matched module, so maximum memory bandwidth may require a second purchase.\u003c\/li\u003e\n\u003cli\u003eProduct appearance may vary from pictures, which may concern buyers wanting a visual match to existing modules.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eComputer Memory Solutions\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCapacity\u003c\/td\u003e\n\u003ctd\u003e16GB (1 x 16GB)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMemory Type\u003c\/td\u003e\n\u003ctd\u003eDDR4-21300 (2666 MHz) Non-ECC SODIMM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePins\u003c\/td\u003e\n\u003ctd\u003e260-pin\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVoltage \u0026amp; Timings\u003c\/td\u003e\n\u003ctd\u003e1.2V, CL19\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible Models\u003c\/td\u003e\n\u003ctd\u003eLenovo Legion Y540 (15), Y540-15IRH, Y540-15IRH-PG0, Legion Y540 (17)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003eLifetime exchange or repair (when bought directly)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch2\u003eOur Verdict\u003c\/h2\u003e\n\u003cp\u003eThe CMS 16GB DDR4 2666MHz SODIMM is a practical and well-matched upgrade for Lenovo Legion Y540 owners who need more memory without fuss; it delivers reliable capacity and compatible speed at a reasonable value, and the manufacturer's warranty adds useful peace of mind. Buyers seeking maximum dual-channel throughput should plan to install a matched second module, but for most users this single 16GB stick is an efficient way to extend laptop life and responsiveness.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eWill this module work with both 15 and 17 inch Legion Y540 laptops?\u003c\/strong\u003e\u003cbr\u003eYes. The manufacturer lists compatibility with Lenovo Legion Y540 (15) models and Legion Y540 (17) models in the product description.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan I mix this module with an existing stick from another brand?\u003c\/strong\u003e\u003cbr\u003eIn most cases mixing manufacturers works, but all memory will run at the slowest installed module or CPU capability, so matched pairs are recommended for best performance.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes this module include a warranty?\u003c\/strong\u003e\u003cbr\u003eYes. Computer Memory Solutions provides a lifetime exchange or repair warranty against manufacturing defects when purchased directly from the maker.\u003c\/p\u003e","brand":"Computer Memory Solutions","offers":[{"title":"Default Title","offer_id":48190898372827,"sku":"B086VTP61S","price":47.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/61X8jTMZBhL._AC_SL1500_aa7d98fc-e6fc-45ed-8279-d0269bee6af2.jpg?v=1769449143","url":"https:\/\/gearmusthave.com\/products\/cms-16gb-ddr4-21300-2666mhz-sodimm-for-lenovo-y540-reliable-upgrade","provider":"GearMustHave","version":"1.0","type":"link"}