Sourced for enterprise IT teams managing Dell PowerEdge R640, R650, R740, R750, R760 and T-series rack and tower servers, the Dell PS-6351-1DFS (PS-6351-1DFS - Dell 350-Watts 100-120V 200-240V Power Supply for Precision 370 Dimension 4600 4700 8400 8000 GX280) is a Power Supplies & Power Protection component matched to OEM specifications. Each unit is verified against manufacturer datasheet revisions and is appropriate for new-build, expansion, or warranty-replacement procurement. Technical specifications include power of 350W, 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 maintains the PS-6351-1DFS in our enterprise inventory and verifies each unit against manufacturer datasheet specifications prior to listing. New stock ships factory-sealed where available; refurbished units are tested under load before dispatch and ship with a 30-day Pro Disk Network functional warranty. Net 30 terms are available for qualified business accounts. Same-day dispatch on in-stock orders placed before 3pm ET; free standard ground shipping on US orders over $150.
The PS-6351-1DFS is a Dell power supplies & power protection component with power 350W, voltage 120V. Pricing on the PS-6351-1DFS is quote-based — email sales@prodisknetwork.com or use our live chat for a quote within one business day.
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Reviewed by:Pro Disk Network Engineering Team — . Specifications, compatibility, and pricing for the PS-6351-1DFS verified against the manufacturer datasheet and our internal lab benchmarks.
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Same-Day US Shipping — orders before 3pm ET ship today via FedEx/UPS
30-Day Free Returns — pre-paid label included on all US orders
Net 30 Available — for verified business buyers
2,000+ B2B Customers — MSPs, government, education, enterprise IT
Quick Answer: Will the PS-6351-1DFS fit my system?
The PS-6351-1DFS is a Dell power supplies & power protection 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 PS-6351-1DFS ship?
If in stock, the PS-6351-1DFS ships same business day on US orders placed before 2 pm ET. Most US ZIP codes receive next-business-day or 2-day delivery via FedEx/UPS Ground or Express. Bulk and project orders shipping in pallets are typically dispatched within 24-48 hours.
The PS-6351-1DFS 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.
Redundant Server Power — N+1 PSU configurations in dual-feed racks — order matched units in pairs to maintain hot-spare semantics.
Rack PDU Replacement — Vertical or horizontal PDUs in cabinet retrofits. Metered or switched models for granular outlet-level control.
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.
New, Bulk, or Refurbished — Choosing Your Tier
Pro Disk Network offers the PS-6351-1DFS across three procurement tiers. Each tier is fully functional and warranted; the choice comes down to budget, warranty length, and whether the deployment is production-critical or capacity-expansion.
Tier
Discount vs OEM List
Warranty
Best For
New (Sealed OEM)
25–40%
Dell manufacturer warranty (1–5 yr)
Production-critical first-tier
New (Bulk OEM)
50–65%
3-year Pro Disk Network warranty
New cluster builds, secondary tier
Refurbished
75–85%
12-month advance replacement
Capacity expansion, lab, dev/test, EOL refresh
What is the PS-6351-1DFS?
The PS-6351-1DFS is a Dell server power supply unit with power 350W 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 PS-6351-1DFS
Pros
Burn-in tested against full rated load before shipping
Drop-in replacement for failed PSUs in matching chassis
Same-day US shipping reduces production downtime
Cons
Refurbished tier may show minor chassis-slot wear
Larger orders may ship LTL freight
Older form factors deprecated by latest chassis revisions
Frequently Asked Questions about PS-6351-1DFS
Is the PS-6351-1DFS a genuine Dell part?
Yes. Pro Disk Network sources every PS-6351-1DFS as factory-original Dell inventory verified against the manufacturer parts registry before listing. 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 12 months.
Will the PS-6351-1DFS fit my system?
The PS-6351-1DFS is a Dell power supplies & power protection 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 PS-6351-1DFS ship?
If in stock, the PS-6351-1DFS ships same business day on US orders placed before 2 pm ET. Most US ZIP codes receive next-business-day or 2-day delivery via FedEx/UPS Ground or Express. Bulk and project orders shipping in pallets are typically dispatched within 24-48 hours.
What is the warranty on the PS-6351-1DFS?
New PS-6351-1DFS 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 (12 months refurbished, 36 months new bulk). DOA replacement is free within 30 days of receipt.
Do you offer bulk pricing for the PS-6351-1DFS?
Yes. Pro Disk Network offers automatic volume discounts at 10, 25, 50, and 100+ unit tiers. Net 30 terms are available for verified businesses, government, and education buyers. Email sales@prodisknetwork.com with the quantity and target ship date for a quote within one business day.
Other parts that share the PS series prefix — useful when sourcing matched lots, hot-spare pools, or capacity-tier expansions.
PS-6351-1DS — PS-6351-1DS - Dell 350-Watts ATX Power Supply Unit for Dimension 4600 4700 8400 8000 GX280 — $392.99
PS-6351-2 — PS-6351-2 - Dell 350-Watts 100-127V 200-240V Power Supply for Vostro 200 400 410 — $291.79
PS-6351-4DF — PS-6351-4DF - Dell 350-Watts 100-120V / 200-240V Power Supply for Inspiron 530 531 Vostro 400 Studio 540 XPS 8000 8100 — $260.58
PS-6351-5DF — PS-6351-5DF - Dell 350-Watts 100-127V / 200-240V Power Supply for Inspiron 530 531 Vostro 400 Studio 540 XPS 8000 8100 — $235.79
Pro Disk Network Buyer’s Guide: Power Supplies & Power Protection
PSU Sizing: Connected Load, Efficiency Curves, and N+1 Redundancy
Sizing the PS-6351-1DFS or its replacement starts with calculating connected load. Add up the nameplate wattage of CPUs, GPUs, drives, fans, and add-in cards under maximum sustained load. Idle is irrelevant; peak sustained is what matters. Size the PSU at 60-80% of nameplate load for best efficiency — modern Platinum/Titanium PSUs hit peak efficiency at 50% load and degrade above 80%.
AC Input, Phase Balancing, and Datacentre Power Best Practices
For UPS-fed servers, confirm the UPS output waveform is compatible with the PS-6351-1DFS's input. Modern PSUs accept both sine-wave and high-quality simulated sine-wave inputs, but older or stepped-approximation UPS outputs can cause buzzing or premature PSU failure. When in doubt, use double-conversion online UPS units.