$191.58In Stock — Usually Ships in 1–3 Business Days
About the YN642
Sourced for enterprise IT teams, the Dell YN642 (YN642 - Dell 875-Watts 100-240V Power Supply for Precision T5400) is a Power Supplies component appropriate for new-build, expansion, or warranty-replacement procurement. Technical specifications include power of 875W, voltage of 240V. Typical use cases include in-place upgrades, EOL replacement under existing OEM service contracts, lab/test environments, and refurbished-rebuild programs. Pro Disk Network sources the YN642 through reputable distribution channels and applies a verification check against the OEM compatibility matrix before each unit is added to active inventory. Each unit ships from the US with dispatch in 1–3 business days. 90-day Pro Disk Network functional warranty included; free US ground shipping on orders over $150.
The YN642 is a Dell power supplies component with power 875W, voltage 240V. Pro Disk Network sells the YN642 for $191.58 with US shipping in 1–3 business days and a 30-day return guarantee.
The YN642 is a Dell power supplies part. Email sales@prodisknetwork.com with your system make, model, and serial number - we will confirm compatibility and ship in 1–3 business days if in stock.
How fast does the YN642 ship?
If in stock, the YN642 ships in 1–3 business days. Most US ZIP codes receive next-business-day or 2-day delivery via FedEx/UPS Ground or Express. Bulk and pallet orders may need extra handling time; we confirm the ship date with your order.
The YN642 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.
What is the YN642?
The YN642 is a Dell server power supply unit with power 875W and voltage 240V, manufactured by Dell. Pro Disk Network ships this part new and certified-refurbished from our US warehouse with dispatch in 1–3 business days, backed by a 30-day return guarantee.
Pros & Cons of YN642
Pros
US shipping in 1–3 business days 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 YN642
Is the YN642 a genuine Dell part?
Yes. Pro Disk Network sources every YN642 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 YN642 fit my system?
The YN642 is a Dell power supplies part. Email sales@prodisknetwork.com with your system make, model, and serial number - we will confirm compatibility and ship in 1–3 business days if in stock.
How fast does the YN642 ship?
If in stock, the YN642 ships in 1–3 business days. Most US ZIP codes receive next-business-day or 2-day delivery via FedEx/UPS Ground or Express. Bulk and pallet orders may need extra handling time; we confirm the ship date with your order.
What is the warranty on the YN642?
New YN642 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 YN642?
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
Sizing the YN642 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 YN642'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.