90W 20V 4.5A 3-Pin Square Tip PA-9 AC Adapter Charger for Inspiron 1100 5100 8200 Latitude C Series Precision M40 M50

9R733 is a 90W external AC adapter in the PA-9 family designed for select Inspiron, Latitude, and Precision systems that use the legacy 3-pin square tip power connector. This adapter delivers 20V at 4.5A and is commonly found under several interchangeable PA-9 family part numbers, including Delta ADP-90FB and PA-1900-05D revisions. It is a good fit for older systems that require the higher-output 90W square-tip supply rather than the lower-watt variants that share a similar connector family.

Technical Specifications

• Part Number: 9R733
• Family: PA-9
• Alternate Part Numbers: 3K360, 6G356, 9R733, 310-1093, 310-1461, 310-1650, 310-2993, 310-4010, 310-7500, ADP-90FB, PA-1900-05D, PA-9, 8509T, 4983D, 7832D, 8725P, 85391, EA10953-56
• Maximum Power: 90W
• Input: 100-240V ~ 1500mA 50-60Hz
• Output: 20V ~ 4.5A
• Connector Type: 3-pin square tip
• Connector Size: Approx. 7.3mm x 6.2mm x 7.5mm
• Device Type: External AC adapter / power supply

Interchangeable / Replacement Part Numbers

9R733, 3K360, 310-1650, ADP-90FB, 310-1093, 6G356, PA-1900-05D, PA-9, 310-1461, 310-2993, 310-4010, 310-7500, 8509T, 4983D, 7832D, 8725P, 85391, EA10953-56

✅ Confirmed Compatibility

Please note that the following list is not exhaustive. Compatibility depends on your system's specific configuration. It's essential to verify compatibility with your system or enclosure manufacturer prior to installation.

✔️ Inspiron Series: 1100, 2500, 2600, 2650, 3700, 3800, 4000, 4100, 4150, 5000, 5000e, 5100, 7500, 8000, 8100, 8200, V700, V710, V740
✔️ Latitude C Series: C400, C500, C510, C600, C610, C640, C800, C810, C840
✔️ Latitude CPi Series: CPi 233ST, CPi 366, CPi A366XT, CPi D233, CPi D266XT, CPi D300XT, CPiA, CPiA300ST, CPiA366ST, CPiA366XT, CPiA400XT, CPiC333GT, CPiC400GT, CPiR, CPiR400GT
✔️ Latitude CPm Series: CPm, CPm 166ST, CPm 233ST, CPm 233XT
✔️ Latitude CPt Series: CPt C333GT, CPt S500GT, CPtC, CPtS, CPtV, CPtV 466GT
✔️ Latitude CPx Series: CPxH, CPxH 500GT, CPxJ, CPxJ 650GT
✔️ Latitude CS Series: CSX, CS R, CSI
✔️ Latitude X / XPi Series: X200, XPi, XPi 133ST, XPi CD, XPi P100SD, XPi P120ST, XPi P133
✔️ Latitude Legacy Series: 75T
✔️ Precision Series: M40, M50
✔️ Docking Station Series: C/Dock, C/Dock II, C/Port, C/Port II

☑️ Key Features

☑️ 90W PA-9 family adapter designed for older legacy notebook platforms
☑️ 20V 4.5A output for systems that require the higher-watt square-tip supply
☑️ Legacy 3-pin square tip connector for select Inspiron Latitude and Precision models
☑️ Commonly cross-referenced under multiple Dell and Delta part numbers
☑️ Useful for both direct laptop replacement and certain compatible docking station setups

⚙️ Fit Notes

• This adapter uses the older 3-pin square tip connector and is not compatible with later round barrel-tip adapters.
• Always match both the connector style and the output rating before ordering.
• PA-2, PA-6, and some similarly labeled adapters may share a related connector family, but they are lower-watt variants and are not exact 90W PA-9 replacements.
• For best results, compare your original adapter label, connector shape, and system model before purchase.