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Questions about this product? Free pre-sales support from a senior specialist — product questions, compatibility checks, BOM quotes, price confirmation — typically answered within one business day. Need camera placement or system design work? Engineering time is $175 per hour (qty 1 = 1 hour). Hardware buyers get up to one hour ($175) credited back on their order.
Lenovo 4X20E50558 135W AC Power Adapter
Overview
The Lenovo 4X20E50558 is a 135W AC adapter rated for 100–240V input at 2.5A, 50–60Hz — a wide-range universal supply that handles both North American and international mains without a separate converter. At 135W output, it delivers enough headroom for high-performance Lenovo ThinkPad and ThinkStation workloads where lower-wattage adapters throttle performance under sustained CPU and discrete GPU load. The universal input range makes it a practical spare or replacement for deployments spanning multiple sites or regions.
Compatibility
Designed for Lenovo systems requiring a 135W slim-tip or square-tip AC adapter — verify the tip type and output voltage on your specific Lenovo ThinkPad or ThinkStation model before ordering, as Lenovo uses multiple connector standards across its product families. Confirm compatibility using the Lenovo parts lookup tool with the 4X20E50558 part number or cross-reference against your system's service manual. Not interchangeable with USB-C Power Delivery adapters or the 65W/90W slim-tip variants used in thinner ThinkPad lines.
Lenovo 4X20E50558 - AC Adapters - 100-240 V 2.5A 50-60 HZ - 135WATT
Build Your Complete System
Manufacturer-verified compatible cameras, recorders, mounts, accessories, and licenses for this product. Adjust quantities and add the entire bundle to your cart in one click.
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System Design, Deployment & Technical Support
Support services and planning resources for commercial surveillance, access control, and infrastructure deployments.
Fixed scope • Fixed price
System Design Assistance
- Get help validating product compatibility
- Coverage requirements
- Storage planning and deployment architecture before you buy.
Deployment & Configuration Support
- Access fixed-scope support for rollout planning
- User setup guidance
- Migration and system standardization across single-site or multi-site deployments
Guides, Tools & Calculators
- PoE requirements
- Storage retention
- Camera selection and deployment methodology