Features: Secure Locking Mechanism The IC Testing socket features a unique locking design to prevent chip displacement during testing, ideal for engineers requiring frequent chip evaluations. Stable Electrical Connection This terminals ensures reliability signals transmission with minimal loss, perfect for precisions electronics development and debugging tasks. Durability Plastic Construction Make from wear resistant plastic, it offer light weight durability without rusting, suitable for long term laboratory use. Wide Chip Compatibility Universally Compatibility with multiple microcontroller chip models, accommodating both beginners and professional across varied projects. Simple Installation Enables quick chip replacement without tools, optimizing efficiency in labs and production lines requiring rapid testing setups. Specifications: Color:Ten Choices Component:plastic Positions:24pin A:4.53cm(1.78inch) B:4.02cm(1.58inch) C:3.05cm(1.20inch) Positions:28pin A:5.01cm(1.97inch) B:4.6cm(1.81inch) C:3.55cm(1.40inch) Positions:40pin A:6.55cm(2.58inch) B:6.16cm(2.43inch) C:5.1cm(2.01inch) Positions:40pin wide/narrow A:6.56cm(2.58inch) B:6.12cm(2.41inch) C:5.1cm(2.01inch) Package Includes: 1pc Ic Locking Seat Movable Socket note: Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. Due to the difference between different monitors, the picture may not reflect the actual color of the item.