Overview
Lenovo ThinkPad USB Ethernet I/O subcard FRU 04X5512, manufactured circa 2010s and made in China. Provides essential USB and RJ-45 Ethernet connectivity for mobile workstation repairs. Ideal for Lenovo ThinkPad W540, W541, and T540p owners needing a reliable replacement part.

Key Features
- FRU P/N: 04X5512
- 2x USB ports
- RJ-45 Gigabit Ethernet port
- Compatible with ThinkPad W540 (20BG/20BH), W541 (20EF/20EG), T540p (20BF/20BE)
- Compact daughterboard design
- OEM Lenovo quality

Condition
Used pre-owned part pulled from working ThinkPad W540. Ports are clean, intact, and fully functional with no damage to connectors or solder joints. Light cosmetic wear from normal installation/removal; board stamps and labels crisp and legible. Tested for compatibility and port measurements are based on typical specs for this model: 4 x 2 x 0.5 inches, under 2 oz.

Shipping
Professional packing, 1-business-day handling, eco-friendly honeycomb/paper insulation, tracking on every shipment, USPS or UPS Ground seller's choice.

Pricing
Priced at current market. Seller genuinely likes reasonable offers and often takes them. Highly responsive to questions .