54Y8901 Specifications
Lenovo 240W Power Supply (TFX / SFF)
Manufacturer: Lenovo
Manufacturer Model: 54Y8901
Product Line: ThinkCentre / ThinkStation Power Supply
Product Series: 240W TFX / SFF PSU
Product Type: Internal Desktop Power Supply
Product Name: Lenovo 240W Internal Power Supply Module (Part 54Y8901)
KEY FEATURES:
Output Power: 240 Watts (some variants listed as 230W)
Input Voltage: 100-127V AC / 200-240V AC, 50/60Hz
Form Factor: TFX / Small Form Factor (SFF) internal desktop PSU
Compatibility: Designed for Lenovo ThinkCentre and ThinkStation SFF desktops (e.g., ThinkCentre M73, M78, M83, M93, ThinkStation E31)
Features Supported: Stable multi-rail power output, compact TFX design, integrated fan cooling, and over-voltage/short-circuit protection
PERFORMANCE:
Maximum Output: 240 Watts
Output Rails: +12V1 @ 12A, +12V CPU @ 16A, +5VSB @ 2–2.5A, -12V @ 0.2A
Efficiency Rating: 80 PLUS Bronze (varies by submodel)
Hot-Swap Capability: Not supported (standard internal PSU)
Redundancy Support: Not applicable
ENVIRONMENTAL & RELIABILITY:
Input Voltage Range: 100-127V / 200-240V AC, 50/60Hz
Operating Temperature Range: Not explicitly specified
Operating Humidity Range: Not explicitly specified
Reliability: Built for Lenovo OEM desktops; designed for continuous office and workstation use
Certifications: RoHS, CE, UL, and WEEE compliant
PHYSICAL:
Form Factor: Internal power supply for Small Form Factor (SFF) chassis – TFX style
Dimensions (W × D × H): Approximately 85 mm × 65 mm × 175 mm
Weight: Approximately 3 lbs (1.36 kg)
Color: Metallic (standard PSU finish)

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