Lenovo part number DPS-900DBA identifies the DPS-900DBA - Lenovo 900-Watts Redundant Power Supply for System x3550, an enterprise-grade Power Supplies unit appropriate for data-center, server-room, and workstation deployment. Technical specifications include power of 900W, features of Redundant. 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-900DBA 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-900DBA is a Lenovo power supplies component with power 900W, features Redundant. Pricing on the DPS-900DBA 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-900DBA 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
The DPS-900DBA 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-900DBA ship?
Pro Disk Network dispatches the DPS-900DBA 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 DPS-900DBA 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 DPS-900DBA?
The DPS-900DBA is a Lenovo server power supply unit with power 900W and features Redundant, 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-900DBA
Pros
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 DPS-900DBA
Is the DPS-900DBA a genuine Lenovo part?
Yes. Pro Disk Network sources every DPS-900DBA 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-900DBA fit my system?
The DPS-900DBA 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-900DBA ship?
Pro Disk Network dispatches the DPS-900DBA 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 DPS-900DBA?
New DPS-900DBA 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-900DBA?
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-900BB — DPS-900BB - Delta 900-Watts Power Supply for for X iDataPlex DX360 6000 Series — $256.02
DPS-900BB-02 — DPS-900BB-02 - Delta 900-Watts Power Supply for System x iDataPlex 6313 / 6316 / 6385 / 6390 / 7831 / 7833 — $153.41
DPS-900BB-1A — DPS-900BB-1A - IBM 900-Watts Power Supply for NeXtScale N1200 Enclosure Chassis — $143.69
DPS-900BB-A — DPS-900BB-A - Delta 900-Watts Power Supply for System x iDataPlex DX350 — $192.37
DPS-900CB — DPS-900CB - Delta 900 Watts Power Supply for System X3650 / X3500 M4 — $117.85
DPS-900CB-A — DPS-900CB-A - Delta 900-Watts AC Power Supply for x3500/x3630/x3650 — $173.18
DPS-900CP — DPS-900CP - Delta 900-Watts Power Supply for System x3500 / x3630 / x3650 — $189.12
DPS-900DB — DPS-900DB - Delta 900-Watts Redundant Power Supply for System x3550 — $239.51
DPS-900DB-A — DPS-900DB-A - Delta 900-Watts Redundant Power Supply for System x3550 — $249.82
Pro Disk Network Buyer’s Guide: Power Supplies
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 DPS-900DBA 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.