Specification BatteriesRequired : 1 Brand : YWBL-WH BulletPoint : BB-WLNNA-AN-DP551 BulletPoint1 : [Compatibility & Easy Use] Suitable for ddr3, ddr4, ddr5udmm, ddr5rdimm desktop ram types. patch assembly for ideal for desktop and server computer repair. BulletPoint10 : High Compatibility: Designed for use with Edwards Signaling F-Series panels. BulletPoint2 : [Memory Module Testing] Insert module for indicator light testing. consistent brightness indicates no circuit faults. led helps identify faulty pins for further testing. BulletPoint3 : [Hardware Testing] Used to detect open circuits, short circuits in memory, addressing poor graphics memory performance. led lights for testing data cables. BulletPoint4 : [ Power Mode] Ram memory tester with battery or type c cable power. indicator shows red when charging, green when fully charged. charges and discharges simultaneously. BulletPoint5 : [Fault Identification] Indicator light changes brightness for hardware faults in data cable circuits. flashing indicates poor , no light means open circuit fault. BulletPoint6 : Two 7-Foot Cords Included: Ready for immediate installation without additional purchases. BulletPoint7 : Rugged Construction: Built for reliability in fire alarm systems and harsh environments. BulletPoint8 : Compact Design: Streamlined form factor for easy integration into existing setups. BulletPoint9 : Versatile Application: Ideal for upgrading communication in fire control panels. Color : Black CompatibleDevices : Edwards Signaling F-Series Fire Alarm Control Panels CompatibleDevices1 : Network Switches CompatibleDevices2 : Routers CompatibleDevices3 : Fiber Optic Networks ConnectivityTechnology1 : Fiber Optic ConnectivityTechnology2 : Sfp DataTransferRate : 56 megabits_per_second FrequencyBandClass : single_band IncludedComponents : Plug-in Cell Module InternetServiceProvider : Any ItemName : RAM Memory Tester, RAM Memory Tester Card, DDR3 DDR4 DDR5 UDMM RDIMM Diagnostic Analyzer with LED Lights, Suitable for Desktop Server, Internalmemory ItemPackageDimensions_Height : 8 centimeters ItemPackageDimensions_Length : 26 centimeters ItemPackageDimensions_Width : 21 centimeters ItemTypeKeyword : internal-memory-card-readers Manufacturer : YWBL-WH MaximumDownstreamDataTransferRate : 56 megabits_per_second MaximumUpstreamDataTransferRate : 56 megabits_per_second ModelName : YWBL-WHa76y41rmqc ModelNumber : YWBL-WHa76y41rmqc ModemType : data_modem NumberOfItems : 1 NumberOfPorts : 2 PartNumber : YWBL-WHa76y41rmqc ProductDescription : Spec: