Specification Brand : risingsaplings BulletPoint1 : All ATMEGA328P-PU chips had been pre-installed the Bootloader program of Uno R3. BulletPoint2 : Compatible for Arduino IDE program, directly installed on UNO R3 board can be used (noted that it need to burned and work fine). BulletPoint3 : It comes with an IC Socket that you can use directly on the breadboard and other environments. ConnectivityTechnology : Bluetooth CustomerPackageType : Standard Packaging ExternallyAssignedProductIdentifier1 : 730074171473 ExternallyAssignedProductIdentifier2 : 0730074171473 IncludedComponents : ATMEGA328P-PU ItemName : risingsaplings 2pcs ATMEGA328P-PU with UNO R3 bootloader and IC Socket ItemPackageDimensions_Height : 10.9982 centimeters ItemPackageDimensions_Length : 1.6002 centimeters ItemPackageDimensions_Width : 7.8994 centimeters ItemTypeKeyword : single-board-computers Manufacturer : risingsaplings ModelNumber : 13 NumberOfItems : 2 OperatingSystem : Linux PartNumber : 13 ProcessorCount : 1 ProductDescription : risingsaplings ATMEGA328P-PU with bootloader and included IC Socket ProductSiteLaunchDate : 2021-02-18T17:38:13.333Z Size : 2pcs and IC Socket TotalUsbPorts : 2 UnspscCode : 32101628 WarrantyDescription : 2 years WirelessCommStandard : bluetooth