Designed to work seamlessly：Works with both cordless and desk phone models W52P, W52H, W56P, W76P and T19, T19P, T21, T21P, T21P-E2, T23G, T30, T31, T40G, MP50. One adapter meets all your SIP phone needs Steady 5V/0.6A Output：Provides a reliable 5-volt, 0.6-amp DC supply with universal 100–240V, 50/60 Hz input. Keeps your phone powered without voltage drops or resets. Compact & Robust Design：Slim, lightweight housing minimizes desk clutter and packs easily for travel. Built-in surge protection and sturdy barrel connector ensure a solid fit and long service life. Plug-and-Play Installation：No configuration or extra tools required—simply plug the barrel connector into your phone’s power port for instant setup. Ideal for busy offices, home workstations, and remote locations. Safety & Durable Build​:circuitry protects against overheating, short circuits, and power surges. Fire-resistant ABS casing withstands daily wear in demanding environments.Compact size fits tight spaces and travel kits, with a reinforced 5ft cord for flexible setup. Keep your SIP phones running smoothly with this PS5V600US Power Adapter. Delivering a consistent 5 V/0.6 A DC output and accepting 100–240 V AC at 50/60 Hz, it’s engineered for stable operation in any office or home environment. Designed for maximum coverage, it supports both cordless models (W52P, W52H, W56P, W76P) and desk phones (T19, T19P, T21, T21P, T21P-E2, T23G, T30, T31, T40G, MP50). Whether you need a direct replacement for a lost power supply or an extra unit for your conference room, this adapter meets OEM specifications with no firmware updates or compatibility issues. The adapter’s compact footprint and durable construction make it perfect for tight workspaces and frequent travelers. Its secure barrel connector locks into place, preventing accidental disconnections during calls. For quick, tool-free setup, simply insert the adapter into your phone’s power jack—no technical expertise required. Avoid missed calls and interrupted meetings by having this dependable power supply on standby. Includes: 1 × Power Adapter (5V 0.6A) Note: Please check your phone model before purchasing to ensure compatibility.