Specification Brand : Generic BulletPoint1 : It is imperative to purchase by PART number ONLY, if applicable. The listed TV model number is a reference only and should not be used to make a purchase decision. The reason is that there can be several different parts that go into the same TV model. These different parts are NOT interchangeable. BulletPoint2 : If you are not sure how to check and match your PART number (NOT TV model number), please contact us first so that we can help you save time and money. ChipsetType : Intel H61 Express CompatibleDevices : Television CompatibleProcessorTypes : Intel Core 2 DUO GraphicsCardInterface : integrated ItemName : Generic Main Board 08-SS55TML-LC324AA for TCL 55S421 55S423 Motherboard ItemPackageQuantity : 1 ItemTypeKeyword : television-replacement-parts MainPowerConnectorType : 24-Pin Manufacturer : Generic MemorySlotsAvailable : 2 ModelName : 08-SS55TML-LC324AA ModelNumber : 55S421 NumberOfPorts : 2 ProductDescription : Television replacement part. Please purchase by part number to ensure compatibility. ProductSiteLaunchDate : 2019-10-29T23:10:30.901Z SpdifConnectorType : TOSLINK SupplierDeclaredDgHzRegulation : unknown SystemBusStandardSupported : SATA 2 TotalPciEPorts : 1 TotalSataPorts : 1 UnspscCode : 43201513