ZhanPeng
Genuine HP ProOne 400 G2 All-in-One PC Slim 19.5V 6.15A 120W AC Power Supply Adapter
Genuine HP ProOne 400 G2 All-in-One PC Slim 19.5V 6.15A 120W AC Power Supply Adapter
Couldn't load pickup availability
HP ProOne 400 G2 120W AC Adapter — 19.5V 6.15A, 7.4x5.0mm Connector
120W power supply for HP ProOne 400 G1/G2, ProOne 480 G2, ENVY 27-P014, and Pavilion 27se All-in-One PCs. 19.5V, 6.15A output, 7.4mm x 5.0mm connector with center pin. Replaces 730982-002, 801637-001, PA-1121-62HC and 12+ part numbers. US/EU/AU/UK power cord.
Product Overview
This 120W AC adapter powers HP ProOne All-in-One business PCs and large-screen HP AIO desktops. 19.5V, 6.15A output. The 7.4mm x 5.0mm barrel connector with center pin is the large HP blue-tip used by ProOne, ENVY AIO, and Pavilion AIO models — not the smaller 4.5x3.0mm used by most HP laptops. Choose US, EU, AU, or UK power cord.
Key Specifications
| Spec | Detail |
|---|---|
| Input | 100-240V AC, 2.0A, 50-60Hz — worldwide |
| Output | 19.5V DC, 6.15A — 120 Watts |
| Connector | 7.4mm x 5.0mm barrel with center pin (large HP blue tip) |
| Power Cord | US / EU / AU / UK plug — select at order |
| Condition | Genuine HP |
| Warranty | 3 months |
| Compatible Devices | HP ProOne 400 G1/G2, ProOne 480 G2, ENVY 27-P014, Pavilion 27se AIO |
Replaces These HP Part Numbers
| Part Number | Type |
|---|---|
| 730982-001 / 730982-002 / 730982-003 | HP spare part numbers (revisions) |
| 801637-001 / 801637-002 / 801637-003 | HP spare part number variants |
| PA-1121-62HC / ADP-120MH T / A120A02CH | Manufacturer model numbers (LiteOn/Chicony) |
| HSTNN-LA25 / HSTNN-CA25 / HSTNN-DA25 | HP internal identification codes |
| NSW25775 / 5400007901 REV:A00 / 9T54 E132068 | Additional cross-reference numbers |
Connector: 7.4x5.0mm — Not the Standard Laptop Tip
| Connector | Used On | This Adapter? |
|---|---|---|
| 7.4mm x 5.0mm (large tip) | ProOne AIO, ENVY AIO, Pavilion AIO, older HP notebooks | YES — this adapter |
| 4.5mm x 3.0mm (small tip) | HP OMEN, ZBook, EliteBook, ProBook G3+ laptops | NO — different adapter |
Why This 120W HP Adapter
120W AIO Power
19.5V at 6.15A — full power for ProOne 400 G2 touchscreen AIO PCs and 27-inch ENVY/Pavilion AIO displays.
16 Part Numbers Replaced
730982-series, 801637-series, PA-1121-62HC, HSTNN-LA25/CA25/DA25, ADP-120MH T and more.
4 Plug Options
US, EU, AU, or UK power cord — select at order. Worldwide 100-240V input.
Frequently Asked Questions
Q: Is this 120W adapter compatible with my HP ProOne AIO?
A: It fits HP ProOne 400 G1 (21.5-inch), ProOne 400 G2 (20-inch), ProOne 480 G2, ENVY 27-P014, and Pavilion 27se Touch AIO — plus any HP device using a 120W adapter with a 7.4x5.0mm connector. Verify your original adapter's part number: 730982-002, 801637-001, or any number in the table above confirms compatibility.
Q: Will this work with my HP laptop?
A: Only if your laptop uses the 7.4x5.0mm large connector. Most HP laptops (OMEN, ZBook, EliteBook, ProBook G3+) use the smaller 4.5x3.0mm tip — those need a different adapter. Measure the outer diameter of your old plug: 7.4mm = this fits; 4.5mm = wrong adapter.
Q: What part numbers does this adapter replace?
A: 16 part numbers: 730982-001/002/003, 801637-001/002/003, PA-1121-62HC, ADP-120MH T, A120A02CH, HSTNN-LA25, HSTNN-CA25, HSTNN-DA25, NSW25775, 5400007901, 9T54 E132068.
Q: Which power cord plug do I choose?
A: Select US, EU, AU, or UK at order. The adapter itself accepts 100-240V worldwide — only the detachable AC cord differs by region.
Q: Can I use this 120W adapter on a 65W or 90W HP AIO?
A: Yes, if the connector matches (7.4x5.0mm). The device draws only what it needs — a 120W adapter on a 65W device is safe and provides extra headroom. Voltage must match: 19.5V.
Summary
| Output | 19.5V DC, 6.15A — 120W |
| Connector | 7.4mm x 5.0mm with center pin (large HP tip) |
| Compatible | ProOne 400 G1/G2, ProOne 480 G2, ENVY 27-P014, Pavilion 27se AIO |
| Replaces | 16 HP part numbers (730982-002, 801637-001, PA-1121-62HC, etc.) |