PL303QMD-Dual-0-30V-0-3A-LXI-RS232-Analogue-Power-Supply-Thurlby-Thandar-PL303QMD-P-This-Dual-analogue-Power-Supply-achieves-an-exceptional-power-density-for-a-linear-regulated-power-by-offering-up-to-90W-from-a-frac 14-rack-3U-sized-casing-P-P-Up-to-four-single-output-units-can-be-fitted-into-one-rack-width-Alternatively-any-combination-of-singles-&-duals-can-be-used-as-in-the-example-shown-P-P-The-TTi-RM450-rack-mount-shown-is-4U-high-&-incorporates-limited-ventilation-sp