1. Interface compatible: RS232, TTL2. Material: ABS3. Transmission mode: asynchronous, full duplex, full transparency4. Electrostatic protection: about 15KV ESD5. Scope of application: PC, terminal equipment, industrial control, digital instrument acquisition, multi-serial port equipment, serial interface of single-chip microcomputer, etc.6. Transmission rate: 300bps-115.2kbps7. Transmission medium: twisted pair/shielded wire8. Size: about 6.3 x 3.4 x 1.8mmFeatures:1. 9-pin nickel-plated connector/female, resistant to unplugging, using anti-oxidation material, anti-corrosion2. TTL wiring port, can use twisted pair/shielded wire, which is more convenient to connect/disassemble3. Environmental protection material, safe to use4. Built-in fast transient voltage suppression protector TVS5. Compatible with RS232 TIA/EIA standard and level data interface, can convert RS232 serial interface data transmission (TXD) and data reception (RXD) signals to TTL/COMS compatible level, TTL level supports two standard interfaces Level 5.0V and 3.3V6. Charge pump drive technology, no external power supply required, using RS232 charge pump drive, the transmission rate can reach 300bps-115.2kbps7. Built-in zero-delay automatic transceiver conversion device8. The I/O circuit automatically controls the direction of data flowSpecification: Package Weight One Package Weight 0.15kgs / 0.34lb One Package Size 16.5cm * 11cm * 6cm / 6.5inch * 4.33inch * 2.36inch Qty per Carton 194 Carton Weight 30.00kgs / 66.14lb Carton Size 50cm * 50cm * 60cm / 19.69inch * 19.69inch * 23.62inch Loading Container 20GP: 177 cartons * 194 pcs = 34338 pcs40HQ: 412 cartons * 194 pcs = 79928 pcs