Alternate color or configuration shown OWC OWC2421DDR4S64P memory module 64 GB 2 x 32 GB DDR4 1200 MHz OWC OWC2421DDR4S64P. Component for: Laptop, Internal memory: 64 GB, Memory layout (modules x size): 2 x 32 GB, Internal memory type: DDR4, Memory clock speed: 1200 MHz, Memory form factor: 260-pin SO-DIMM, CAS latency: 17 Manufacturer: OWC SKU: 6849431 Manufacturer part number: OWC2421DDR4S64P GTIN: 810586032827 Price: $364.74 Qty: Add to cart Custom wishlist OK Add to wishlist Add to compare list Email a friend Improve System SpeedOWC Memory is the most cost effective and simple DIY upgrade you can install to unleash your Mac's full potential and speed up overall responsiveness.More Apps. More FilesBecome a multi-tasking maven when you upgrade your Mac with OWC Memory. Open more apps. Open larger files. Plus, work with multiple files all at the same time.Save $$S vs FactorySave BIG vs factory Mac memory options. Plus, select among options not offered by the factory. OWC makes it easy to find the perfect upgrade to fit your needs.Lab Tested CompatibilityWe test every OWC memory module at our in-house lab so you can upgrade with the confidence that your memory is 100% compatible with your Mac.Lifetime WarrantyWe build OWC Memory upgrades to meet or exceed Apple's specs and provide years of worry-free service.Step-by-Step VideosOur detailed install videos guide your upgrade from start to finish. We provide all the steps to make your OWC Memory upgrade DIY easy. Memory is the most cost-effective DIY upgrade you can make to your MacUnleash the true speed and performance of your system and applicationsExperience increased efficiency and productivity. Open more apps and files, all at the same time Overview Specifications Contact Us Improve System SpeedOWC Memory is the most cost effective and simple DIY upgrade you can install to unleash your Mac's full potential and speed up overall responsiveness.More Apps. More FilesBecome a multi-tasking maven when you upgrade your Mac with OWC Memory. Open more apps. Open larger files. Plus, work with multiple files all at the same time.Save $$S vs FactorySave BIG vs factory Mac memory options. Plus, select among options not offered by the factory. OWC makes it easy to find the perfect upgrade to fit your needs.Lab Tested CompatibilityWe test every OWC memory module at our in-house lab so you can upgrade with the confidence that your memory is 100% compatible with your Mac.Lifetime WarrantyWe build OWC Memory upgrades to meet or exceed Apple's specs and provide years of worry-free service.Step-by-Step VideosOur detailed install videos guide your upgrade from start to finish. We provide all the steps to make your OWC Memory upgrade DIY easy. Memory is the most cost-effective DIY upgrade you can make to your MacUnleash the true speed and performance of your system and applicationsExperience increased efficiency and productivity. Open more apps and files, all at the same time Products specifications Attribute name Attribute value Memory bandwidth (max) 19.2 GB/s JEDEC standard Yes Refresh row cycle time 0.83 ns Memory data transfer rate 2400 MT/s Compliance certificates RoHS Operational conditions Operating temperature (T-T) 0 - 85 °C Features Internal memory 64 GB Internal memory type DDR4 Memory clock speed 1200 MHz Component for Laptop Memory form factor 260-pin SO-DIMM ECC No Buffered memory type Unregistered (unbuffered) CAS latency 17 Memory layout (modules x size) 2 x 32 GB