Controller version 13398-DO, upgrade, uses high-quality FR-2 copper-clad laminate, upgraded solid capacitors, high-precision welding process, and conformal coating for enhanced insulation, moisture resistance, and leakage protection. Manufactured to industry standards with high-quality materials and craftsmanship. Tested for performance, quality, and reliability. Replacement Controller V-Sync II (part number 211852), compatible with in-wall slide-out systems on RVs. 13398-DO slide controller — Dual Synchronous Velocity Slide Controller. Power Input: 12V DC (operates within 8V–18V DC range). Easy installation — confirm compatibility with your RV model before purchase. Function: Designed to restore slide-out functionality quickly, minimizing downtime and supporting reliable operation. Precisely matched component — no assembly required; installs in minutes. Color: As shown Material: Metal Package Contents: 1 × Synchronous Velocity Slide Controller Note: Actual product may vary slightly in appearance or color due to manufacturing updates, lighting conditions, or display settings. Measurements are subject to a tolerance of ±1–3 cm. Other accessories or components shown are not included.