Sourced for enterprise IT teams, the Dell 0R851G (0R851G - Dell 300-Watts 100-120V/200-240V ATX Power Supply for Inspiron 518/530/531/541/560/580, Vostro 200/220/400) is a Power Supplies component appropriate for new-build, expansion, or warranty-replacement procurement. Technical specifications include power of 300W, voltage of 120V. Typical use cases include in-place upgrades, EOL replacement under existing OEM service contracts, lab/test environments, and refurbished-rebuild programs. Pro Disk Network supplies the 0R851G to US business buyers. Stocked units ship same-day on in-stock orders placed before 3pm ET. Pro Disk Network applies a 90-day functional warranty. Free US ground shipping on orders over $150; same-day expedited (UPS Next Day Air, FedEx Priority) available at checkout.
The 0R851G is a Dell power supplies component with power 300W, voltage 120V. Pro Disk Network sells the 0R851G for $87.16 with same-day US shipping and a 30-day return guarantee.
The 0R851G is a Dell power supplies part. Email sales@prodisknetwork.com with your system make, model, and serial number - we will confirm compatibility and ship same-day if in stock.
How fast does the 0R851G ship?
Pro Disk Network dispatches the 0R851G same-day on orders confirmed before 3 pm ET. Multi-pallet projects requiring crating ship within 2 business days. International shipping (Canada, Mexico, EU, APAC) takes 3-7 business days via DHL Express or FedEx International Priority.
The 0R851G is deployed by US enterprises, MSPs, government, and education customers across multiple infrastructure scenarios. Below are the most common deployment patterns Pro Disk Network sees in real-world orders.
Branch UPS — Office or remote site UPS. 1500–3000 VA covers most server-rack mini-deployments with 5–15 minute runtime.
Datacenter UPS Module — Online double-conversion UPS for production server rooms. Match VA rating to total connected load + 30% headroom.
Telco / Battery Backup — DC-powered batteries for telco-class equipment, ISP CPE, and outdoor cabinets. Confirm voltage (-48 V vs +12/24 V).
What is the 0R851G?
The 0R851G is a Dell server power supply unit with power 300W and voltage 120V, manufactured by Dell. Pro Disk Network ships this part new and certified-refurbished from our US warehouse with same-day dispatch on orders placed before 3 PM ET, backed by a 30-day return guarantee.
Pros & Cons of 0R851G
Pros
Same-day US shipping reduces production downtime
Cons
Not interchangeable across server generations — confirm part number
Voltage range matters: 110V vs 208V vs 240V at full load
High-density chassis may require N+2, not just N+1
Frequently Asked Questions about 0R851G
Is the 0R851G a genuine Dell part?
Yes. Pro Disk Network sources every 0R851G as factory-original Dell inventory. New units arrive sealed in OEM packaging; refurbished units are pulled from decommissioned Dell servers, surface-tested, and re-warranted by Pro Disk Network for 90 days.
Will the 0R851G fit my system?
The 0R851G is a Dell power supplies part. Email sales@prodisknetwork.com with your system make, model, and serial number - we will confirm compatibility and ship same-day if in stock.
How fast does the 0R851G ship?
Pro Disk Network dispatches the 0R851G same-day on orders confirmed before 3 pm ET. Multi-pallet projects requiring crating ship within 2 business days. International shipping (Canada, Mexico, EU, APAC) takes 3-7 business days via DHL Express or FedEx International Priority.
What is the warranty on the 0R851G?
New 0R851G units carry the full Dell manufacturer warranty (typically 1 to 5 years depending on product line). Refurbished and bulk-OEM units include a Pro Disk Network advance-replacement warranty (90 days refurbished). DOA replacement is free within 30 days of receipt.
Do you offer bulk pricing for the 0R851G?
Email sales@prodisknetwork.com with the quantity and target ship date for a quote within one business day.
PSU Sizing: Connected Load, Efficiency Curves, and N+1 Redundancy
For racks with shared PDUs, plan PDU capacity at 80% of breaker rating, not 100%. A 30A PDU should carry no more than 24A sustained. Distribute high-power chassis across multiple PDUs in dual-feed racks so a single PDU failure does not exceed the survivor's headroom.
AC Input, Phase Balancing, and Datacentre Power Best Practices
The 0R851G accepts a defined AC voltage range, typically 100-240V or 200-240V for high-output server PSUs. Higher voltage = higher efficiency: a server PSU at 240V input runs 1-2% more efficient than the same PSU at 120V. In datacentres with 208V three-phase, balance loads across the three phases to avoid neutral saturation and reduce harmonic distortion on the upstream UPS.