Lenovo part number DPS-750AB-20-A identifies the Lenovo DPS-750AB-20 A 750-Watts 80+ Titanium Hot-Swappable Power Supply for ThinkServer RD550 / RD650, an enterprise-grade Power Supplies unit appropriate for data-center, server-room, and workstation deployment. Technical specifications include power of 750W, features of Hot-Swap. 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 DPS-750AB-20-A 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 90-day Pro Disk Network functional warranty. Same-day dispatch on in-stock orders placed before 3pm ET; free standard ground shipping on US orders over $150.
The DPS-750AB-20-A is a Lenovo power supplies component with power 750W, features Hot-Swap. Pricing on the DPS-750AB-20-A is quote-based — email sales@prodisknetwork.com or use our live chat for a quote within one business day.
Reviewed By
Reviewed by:Pro Disk Network Engineering Team — . Specifications, compatibility, and pricing for the DPS-750AB-20-A are shown on this page.
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Same-Day US Shipping — orders before 3pm ET ship today via UPS
30-Day Returns — pre-paid label on DOA and defective items
Quick Answer: Will the DPS-750AB-20-A fit my system?
The DPS-750AB-20-A is a Lenovo 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 DPS-750AB-20-A ship?
DPS-750AB-20-A orders placed before 3 pm ET ship the same business day from US warehouses. Delivery is next business day to most metro ZIPs via FedEx/UPS overnight; ground delivery covers remaining US in 1-4 business days.
The DPS-750AB-20-A 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.
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.
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 DPS-750AB-20-A?
The DPS-750AB-20-A is a Lenovo server power supply unit with power 750W and features Hot-Swap, manufactured by Lenovo. 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 DPS-750AB-20-A
Pros
Same-day US shipping reduces production downtime
Cons
Server-grade PSU — not for desktop or workstation use
Higher in-rush current — confirm UPS sizing
Frequently Asked Questions about DPS-750AB-20-A
Is the DPS-750AB-20-A a genuine Lenovo part?
Yes. Pro Disk Network sources every DPS-750AB-20-A as factory-original Lenovo inventory. New units arrive sealed in OEM packaging; refurbished units are pulled from decommissioned Lenovo servers, surface-tested, and re-warranted by Pro Disk Network for 90 days.
Will the DPS-750AB-20-A fit my system?
The DPS-750AB-20-A is a Lenovo 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 DPS-750AB-20-A ship?
DPS-750AB-20-A orders placed before 3 pm ET ship the same business day from US warehouses. Delivery is next business day to most metro ZIPs via FedEx/UPS overnight; ground delivery covers remaining US in 1-4 business days.
What is the warranty on the DPS-750AB-20-A?
New DPS-750AB-20-A units carry the full Lenovo 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 DPS-750AB-20-A?
Email sales@prodisknetwork.com with the quantity and target ship date for a quote within one business day.
Other parts that share the DPS series prefix — useful when sourcing matched lots, hot-spare pools, or capacity-tier expansions.
DPS-750AB-1 — DPS-750AB-1 - IBM 750-Watts Power Supply for System X3650 M4 — $52.00
DPS-750AB-1-A — Delta DPS-750AB-1 A 750-Watts 100-240V Power Supply for x3650 M4 Server — $141.59
DPS-750AB-14 — DPS-750AB-14 - IBM 750-Watts AC Power Supply for X3300 M4 / X3550 M4 / X3650 / 3630 M4 — $60.00
DPS-750AB-14-A — DPS-750AB-14-A - Delta Electronics / IBM 750-Watts AC Power Supply for System x3300 M4 / x3550 — $154.37
DPS-750AB-15-B — Delta DPS-750AB-15 B 750-Watts 100-240V 80 Plus Platinum Hot-Swappable Power Supply for PowerEdge R630 T430 T630 — $154.24
DPS-750AB-17-A — Delta DPS-750AB-17 A 750-Watts 200-240V Redundant Power Supply for PowerEdge R820 R720 R720XD — $254.04
DPS-750AB-1A — DPS-750AB-1A - Delta 750-Watts Power Supply for System x3500 / x3550 / x3630 — $173.54
DPS-750AB-2-D — Delta DPS-750AB-2 D 750-Watts 100-240V Redundant Power Supply for PowerEdge R520 R620 R720 R720XD R820 T420 — $236.72
DPS-750AB-20A — DPS-750AB-20A - Delta 750-Watts 80 Plus Titanium Hot-pluggable Power Supply for ThinkServer RD550 / RD650 / TD350 — $77.97
DPS-750AB-21 — DPS-750AB-21 - Delta 750 Watts 80 Plus Titanium Hot-Swappable Power Supply for ThinkServer RD550 — $124.00
DPS-750AB-21-A — Delta DPS-750AB-21 A 750-Watts 80 Plus Titanium Power Supply For TD350 / RD650 / RD550 / RD450 Server — $286.44
DPS-750AB-21A — DPS-750AB-21A - Delta 750-Watts 80 Plus Titanium Hot-pluggable Power Supply for ThinkServer RD550 / RD650 / TD350 — $290.74
Pro Disk Network Buyer’s Guide: Power Supplies
PSU Sizing: Connected Load, Efficiency Curves, and N+1 Redundancy
For N+1 redundancy in a dual-PSU server, both PSUs must be rated to handle full load alone. This is non-negotiable in production: if a single PSU fails and the surviving one is undersized, the system shuts down. The DPS-750AB-20-A should be matched in wattage rating to the partner PSU in the chassis; mismatched ratings sometimes work but trigger warnings in the BMC.
AC Input, Phase Balancing, and Datacentre Power Best Practices
Document the DPS-750AB-20-A model, wattage, and partner PSU in your CMDB. Power audits typically find one or two undersized servers and one or two over-redundant clusters per rack — both of which waste capacity that could feed additional production load.