Cheap chinese parts that are good for prototyping simple circuits, but not for production or permanent use. They have no datasheets or specs, and likely wouldn't meet them even if they had them. You know what you are getting when you pay this little for a huge set of parts. Don't expect miracles, and buy good parts from a reputable dealer if you are building or repairing something that you care about.
Friencity Digital To Analog Audio Converter, Optical To RCA Converter, SPDIF(Toslink) Coaxial To Stereo L/R AUX Adapter W/Optical Cable For TV Amps Blu-Ray Player PS4 Home Cinema, Plug N Play
6 Review
Streamline Your Prototyping Work With WayinTop Jumper Wire Kit - Preformed & Flexible Breadboard Jumper Wires With Tweezer Tool
7 Review
10 Pcs Copper Clad Laminate PCBs - 7X10 Cm 4X2.7 In - Universal Circuit Board For DIY Etching Projects
6 Review
4PCS Breadboards Kit Include 2PCS 830 Point 2PCS 400 Point Solderless Breadboards For Proto Shield Distribution Connecting Blocks
14 Review