Products · Classic CRPS

CRPS 550W–1300W Titanium Power Supplies

The volume segment of every server rack. Our 550W, 800W and 1300W CRPS modules are in production today on the standard CRPS-185 envelope — 73.5×40×185mm, 1U height — with 80 PLUS Titanium efficiency of 96% at 50% load. Whether you need silent compliance for enterprise 1U/2U servers or hot-swap redundancy for a storage array, this series drops into the golden-finger footprint your chassis was designed around.

Series Specifications

Parameter	Specification
Rated Power	550W / 800W / 1300W (continuous, per rating chart)
Efficiency	80 PLUS Titanium (230V internal redundant): 90% @10%, 96% @50%, 91% @100%
Input	100–240Vac, 50/60Hz, C14 inlet; full load from 200Vac
Output	12V main rail + 12Vsb standby; active current sharing across parallel units
Form Factor	CRPS-185, 73.5 × 40 × 185 mm, 1U hot-plug
Cooling	40mm fan, front-to-back or back-to-front airflow direction option
Protection	OVP / UVP / OCP / OTP / fan-fault, five-way protection with auto-recovery latches
Telemetry	PMBus 1.2 over I²C on smart variants: V, I, T, fan RPM; basic (non-PMBus) variant available
Operating Temp	−5°C to +55°C continuous output with thermal derating above 45°C per curve
Redundancy	N+1 / N+N hot-swap, hot-pluggable into live backplane
Reliability	MTBF ≥ 250,000 hrs @ 40°C (Telcordia SR-332 prediction)
Compliance	IEC/UL/EN 62368-1 with CB, CE, UKCA, FCC Part 15 Subpart B, RoHS 2.0, REACH

Ratings

Three Rungs, One Footprint

550W

550W — Dense 1U Baseline

For single-socket 1U servers and ToR switches where every millimeter and watt counts. The lowest-loss way to meet a tight thermal budget: at 50% load on a 275W draw, titanium wastes under 6 watts versus over 12 watts for a comparable consumer-grade brick.

Macro of hexagonal vent pattern and handle on a CRPS chassis

800W

800W — Redundant 2U Standard

The default choice for 2U enterprise servers and dual-path storage controllers. Two 800W units in N+1 cover a sustained 640W system draw with margin, and active current sharing keeps both units loafing in their 96%-efficiency window.

1300W

1300W — GPU-Option Towers

Bridges general compute into accelerator territory: a 2U chassis with one or two low-profile accelerators, or high-spinning JBOD drawers full of disks. Smart PMBus variant reports per-rail current so your BMC can throttle before a fan fault becomes an outage.

Titanium is an OPEX decision

Moving from Gold to Titanium lifts 50%-load efficiency from roughly 92% to 96%. On a 10kW fleet load that is about 430W of heat per hour you simply stop generating — smaller PSUs run cooler, fans spin slower, and the saved airflow budget goes to your chips. Over a three-year refresh cycle the efficiency delta routinely pays for the power subsystem.

Thermal design for real racks

A single 40mm fan with an NTC-monitored hotspot map drives an RPM curve tuned to the CRPS-185 airflow path. Rated for −5°C to +55°C continuous output — the edge-site range — with a published derating curve instead of a hidden cliff. Fan-fault detection flags a dying fan through PMBus weeks before it matters.

Compatibility

Drops Into Standard CRPS Chassis

The CRPS-185 golden-finger connector and 73.5×40×185mm envelope are de facto standards shared across the 1U/2U server ecosystem — the same footprint the major CRPS vendors step from 550W through 2400W and beyond. We validate every production lot against the mechanical dimensions, connector tolerance and hold-up-time behavior your chassis vendor specifies, and we supply a fit-check checklist for your first-article run. For legacy or non-standard trays, send us the cutout drawing; bezel and handle variations are a routine ODM change.

73.5×40×185mm — CRPS-185 envelope, 1U height

96%peak efficiency @ 50% load, 230V redundant rating

250khours MTBF @ 40°C, Telcordia SR-332

Where This Series Lands

Enterprise servers

1U/2U compute nodes where the smart-versus-basic PSU tradeoff matters: PMBus variants for managed fleets, basic variants where the BMC simply watches a presence pin.

Storage systems

JBOD and SAN drawers running 7×24 near full load — 800W or 1300W units in N+1 with active current sharing, so neither supply ages alone.

Network switches

ToR and spine boxes squeezed for airflow: front-to-back or back-to-front fan direction matched to your slot layout, full output to +55°C for hot wiring closets.

FAQ

Which wattage should I pick for a 2U dual-socket server?

Budget worst-case CPU, memory, disk and fan draw, add 25% headroom, then divide by your redundancy count. A system drawing 900W sustained fits two 550W units in N+1 only with thin margin — 800W units give comfortable headroom and keep both supplies in the 50%-load efficiency sweet spot.

Are these units in production now?

Yes. The 550W, 800W and 1300W CRPS series are in volume production. Samples ship in 2–4 weeks with full test data; volume production follows in 6–10 weeks including burn-in, from 100–500 pcs per order for standard configurations.

Can I get the series without PMBus to cut cost?

Yes — each rating is offered in a basic variant (PSON and PS_KILL signals, no serial bus) and a smart variant with PMBus 1.2 telemetry. The protection set and efficiency rating are identical; only the management interface differs.

Will they fit my existing chassis without requalification?

The envelope, connector and mounting are held to CRPS-185 standard tolerances, so mechanical fit is normally direct. We recommend a first-article fit-and-function check against your chassis and can supply a compatibility checklist — for edge cases we adjust bezel, handle or connector orientation as an ODM change.

Quote the 550W–1300W Series

Tell us your chassis and load profile — we reply within 48 hours with pricing, samples plan and test data package.