HP part number 677721-101-RMK identifies the 677721-101-RMK - HPE 1200-Watts Power Supply, an enterprise-grade Power Supplies unit appropriate for data-center, server-room, and workstation deployment. Technical specifications include power of 1200W. 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 677721-101-RMK 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 677721-101-RMK is a HP power supplies component with power 1200W. Pricing on the 677721-101-RMK 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 677721-101-RMK are shown on this page.
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Quick Answer: Will the 677721-101-RMK fit my system?
The 677721-101-RMK is a HP 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 677721-101-RMK ship?
Pro Disk Network dispatches the 677721-101-RMK 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 677721-101-RMK 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 677721-101-RMK?
The 677721-101-RMK is a HP server power supply unit with power 1200W, manufactured by HP. 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 677721-101-RMK
Pros
Same-day US shipping reduces production downtime
Cons
Wattage headroom should be sized at 70-80% sustained load
Cable harness sold separately on certain chassis
OEM warranty does not transfer with refurbished units
Frequently Asked Questions about 677721-101-RMK
Is the 677721-101-RMK a genuine HP part?
Yes. Pro Disk Network sources every 677721-101-RMK as factory-original HP inventory. New units arrive sealed in OEM packaging; refurbished units are pulled from decommissioned HP servers, surface-tested, and re-warranted by Pro Disk Network for 90 days.
Will the 677721-101-RMK fit my system?
The 677721-101-RMK is a HP 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 677721-101-RMK ship?
Pro Disk Network dispatches the 677721-101-RMK 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 677721-101-RMK?
New 677721-101-RMK units carry the full HP 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 677721-101-RMK?
Email sales@prodisknetwork.com with the quantity and target ship date for a quote within one business day.
Other parts that share the 677721 series prefix — useful when sourcing matched lots, hot-spare pools, or capacity-tier expansions.
677721-101 — 677721-101 - HP 1200-Watts Common Slot 380V DC Redundant Hot-Pluggable Power Supply for Proliant DL380p Gen8 — $268.73
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 677721-101-RMK 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.