The WG3023D is a 1×8 desktop mechanical optical switch engineered for automated optical path routing in component testing, transceiver module characterization, and fiber network verification. Its mechanical switching architecture delivers 1.0dB typical insertion loss (1.5dB max), 60dB crosstalk suppression, 50dB return loss, and ±0.02dB insertion-loss consistency—metrics that preserve signal integrity in loss-budget-sensitive test chains. 20ms switching time and 10⁷ (ten million) switching cycles support high-duty-cycle automated environments without relay degradation. Operating across SM 1270–1650nm or MM 850nm (optional), with 0.05dB polarization-dependent loss and 0.4dB wavelength-dependent loss, the WG3023D suits both single-mode and multimode routing. RS232 and USB interfaces enable full remote control, allowing the switch to be sequenced alongside power meters, attenuators, and source-measure units in a single automated test script. Front-panel buttons and LED indicators support standalone operation. Its compact 205×205×100mm / ≤1kg chassis and AC 100–250V input suit lab benches and production floors alike. The WG3023D is purpose-built for optical device inspection, optical transceiver module debugging, fiber network testing, and automated test system integration—wherever a 1×8 path selector must be reliable, repeatable, and script-controllable.