Specification Brand : G.SKILL BulletPoint1 : 16GB KIT (2 x 8GB) SO-DIMM DDR3 NON-ECC PC3-10600 1333MHz RAM Memory BulletPoint2 : Genuine A-Tech Memory BulletPoint3 : Lifetime Warranty BulletPoint4 : Designed For Dell Inspiron Notebook Series. (See Compatibility List Below) BulletPoint5 : Voltage: 1.65V BulletPoint6 : XMP Support: Yes BulletPoint7 : Speed Compatibility: Compatible with 2400MHz, 2133MHz, 1866MHz Color : Red ColumnAddressStrobeLatency : 9 CompatibleDevices : Desktop DataTransferRate : 1600 MHz ExternallyAssignedProductIdentifier1 : 012304985389 ExternallyAssignedProductIdentifier10 : 05054531085482 ExternallyAssignedProductIdentifier2 : 848354006718 ExternallyAssignedProductIdentifier3 : 0848354006718 ExternallyAssignedProductIdentifier4 : 5053460708028 ExternallyAssignedProductIdentifier5 : 5053460808216 ExternallyAssignedProductIdentifier6 : 5054531085482 ExternallyAssignedProductIdentifier7 : 4711148596718 ExternallyAssignedProductIdentifier8 : 0012304985389 ExternallyAssignedProductIdentifier9 : 04711148596718 FormFactor : DIMM ItemName : G-Skill 4GBXL Ripjaws X for Intel Sandybridge Platforms DDR3 PC12800 1600MHz 4GB Kit ItemPackageDimensions_Height : 21.8 centimeters ItemPackageDimensions_Length : 2 centimeters ItemPackageDimensions_Width : 14 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : computer-internal-memory Manufacturer : MMLD4 MemorySpeed : 1600 MHz MemoryStorageCapacity : 4 GB ModelName : G-Skill MMLD4 ModelNumber : F3-12800CL9D-4GBXL NumberOfItems : 2 NumberOfPins : 240 PartNumber : F3-12800CL9D-4GBXL ProductDescription : 16GB KIT (2 x 8GB) SO-DIMM DDR3 NON-ECC PC3-10600 1333MHz For Dell Inspiron Notebook Series. Designed For Dell Inspiron Notebook Series: 15R (5521). Will also work with many other brands and models. Genuine A-Tech Brand: A-Tech is one of the most trusted names in Premium Memory. Backed by a Lifetime Warranty and 5 star customer support, A-Tech has you covered! Memory upgrades have never been easier. Designed specifically to help your computer run faster and smoother, an A-Tech memory upgrade is one of the fastest, most affordable, and easiest ways to improve system performance. A-Tech memory empowers your computer to achieve faster application loading times, faster system responsiveness, and increased ability to multitask and handle data-intensive programs. A-Tech modules are rigorously tested to ensure that your memory meets our stringent compatibility and performance standards. Every A-Tech ram module is tested for complete functionality before it leaves our doors and includes toll free technical support at 1-866-557-4527. Give your computer the best, trust A-Tech! ProductSiteLaunchDate : 2011-01-07T00:00:00.000Z Size : 4 Gb StreetDate : 2011-03-23T00:00:01Z SupplierDeclaredDgHzRegulation : not_applicable UnspscCode : 32101600 Voltage : 1.5 volts WarrantyDescription : Limited Lifetime Warranty Covering Defects In Materials And Workmanship