⚡🖥️ Dell DA‑2 Power Supply
 
(12V DC • 18.3A • 220W • 8‑Pin Proprietary Connector)

This adapter delivers 12V of regulated DC power at up to 18.3A, with additional 5V standby rails. It uses Dell’s proprietary 8‑pin DA‑2 connector, designed for high‑power systems like eGPU enclosures, Alienware desktops, and OptiPlex USFF models that also accept DA‑3 bricks.
 
🔧 Charger Form
Input: 100–240V AC, 50/60Hz
Output: 12V DC @ 18.3A (220W) + 5VSB
Connector: Dell DA‑2 8‑pin proprietary plug
Common part numbers: Y2515, D220P‑01, J938H, C9550, U8966
Brick label: “DA‑2 Series,” “12V 18.3A,” “220W,” “5VSB”
 
🖥️ Compatible Devices
🟦 Dell Desktops & Workstations (DA‑2 Native)
Dell XPS 200, 210, 400, 410
Dell XPS 700, 710, 720
Dell Studio Hybrid
Dell Precision 370 USFF
🟦 Alienware Systems
Alienware X51 R1 / R2 / R3
Alienware Alpha R1 / R2
Alienware Graphics Amplifier (AGA)
🟦 eGPU & Modding Community
DIY eGPU builds using DA‑2 for 12V rail
PCIe riser/extender power for compact GPU enclosures
Mini‑ITX and SFF modding where internal PSU is omitted
🟦 Dell OptiPlex USFF Desktops (DA‑3 Line, Fully Compatible)
OptiPlex SX280
OptiPlex GX620 USFF
OptiPlex 745 USFF
OptiPlex 755 USFF
OptiPlex 760 USFF
OptiPlex 780 USFF
OptiPlex 960 USFF
 
✅ Common Uses
🔌 Powering Dell and Alienware desktops with external PSU design
🧩 Replacing lost or damaged OEM DA‑2 220W adapters
🧪 Supplying clean 12V power to GPUs in DIY eGPU setups
🧵 Essential entry for Dell’s high‑power external PSU ecosystem
 
🧠 Signal Format
⚡ Input: Universal AC (100–240V)
🔋 Output: Regulated 12V DC @ 18.3A + 5VSB
🔌 Connector: Dell DA‑2 8‑pin proprietary plug
🔁 Fully backward‑compatible with DA‑3 desktops (12V only)
 
⚠️ Things to Watch Out For
📉 DA‑2 bricks work with DA‑3 desktops — but DA‑3 bricks may underpower DA‑2 systems
🔌 Connector is proprietary — cannot be replaced with barrel or C13 adapters
🧯 Always confirm model and wattage needs before substitution
📏 Some DA‑2 devices draw full 220W — underpowering may cause shutdown or instability
 
🛠️ Quick Tips for Beginners
🔌 Confirm device has 8‑pin DA‑2 or DA‑3 input — not standard barrel or C13
🧪 If system won’t power on, inspect 8‑pin connector for bent pins or wear
🧯 Label clearly to avoid mix‑ups with laptop or monitor adapters
🧵 Keep this entry in your Dell/Alienware/eGPU power catalog