2U Redundant / IS-850R2UPD8UC
850W 2U CRPS High Efficiency Redundant Power Supply
The 850W CRPS sibling of IS-550R2UPD8UC: same 75.9 × 83.8 × 229.9 mm 2U 1+1 redundant envelope, with +12V raised to 70.8A and a different DC output connector (Oupiin 9393) when the 2U platform needs more 12V current.
Product Overview
What the IS-850R2UPD8UC is built for.
The Xeal IS-850R2UPD8UC is the 850W 2U CRPS 1+1 redundant supply in the same mechanical outline as IS-550R2UPD8UC (75.9 × 83.8 × 229.9 mm, 1800 g). Dual AC, hot-swap, load sharing, automatic fan thermal control, and PMBus are shared; the electrical step is +12V 70.8A versus 46A, and total output 850W versus 550W (+3.3V/+5V still ≤ 150W). The specsheet lists the DC output connector as Oupiin 9393-F4P50N11ACB30DA rather than the ATX connector called out on the 550W unit — confirm pin-out with the drawing before treating them as cable-identical. Efficiency 85% typical at 100% load. Official _01 product photo is byte-identical to IS-550R2UPD8UC_01 and is not used here; this page uses this SKU’s unique _02/_03/_04 photos plus its own output diagram.
Specifications
Technical specifications.
| Model Number | IS-850R2UPD8UC |
|---|---|
| Product Category | Redundant Power Supply |
| Brand | Xeal |
| Form Factor | 2U |
| Redundancy | 1+1 hot-swap CRPS |
| Output Wattage | 850W (+3.3V/+5V ≤ 150W) |
| Efficiency | 85% typical at 100% load |
| Airflow | Back to front |
| AC Input | 90–264Vac · 47–63Hz · dual AC |
| Power Factor | ≥ 0.95 at full load |
| AC Inlet | IEC320 C14 |
| DC Output | +12V 70.8A · +5V 20A · +3.3V 20A · +5VSB 3A · −12V 0.5A |
| Hold-up Time | ≥ 12ms @ 115Vac, 70% load |
| Connector Type | Main 24 pin · 8-pin EPS 12V ×2 · Molex ×4 · SATA ×3 · Floppy ×1 · 8-pin PCIe ×2 |
| DC Output Connector | Oupiin 9393-F4P50N11ACB30DA (specsheet) |
| PMBus | Yes |
| MTBF | > 250,000 hours at 25°C typical load |
| Weight | 1800 g |
| Certification | RoHS · IEC62368 |
| Operating Temperature | 0–50°C |
| Dimensions | 2.99" × 3.30" × 9.05" · 75.9 × 83.8 × 229.9 mm |
Key Features
Engineered for reliability and integration.
- 2U CRPS 1+1 redundant, 850W
- +12V 70.8A (vs 46A on IS-550R2UPD8UC)
- Dual AC input, hot-swappable modules, load sharing
- PMBus support
- Active PFC and automatic fan thermal control
- High efficiency 85% typical at 100% load (80 PLUS Platinum on specsheet)
- OPP, OVP, OCP, SCP, UVP, OTP
- Power-failure alarm and signals
- MTBF > 250,000 hours at 25°C typical load
- Same CRPS outline as IS-550R2UPD8UC — wattage step, not a new cutout
Downloads
Documentation & drawings.
Applications
Where the IS-850R2UPD8UC is deployed.
Higher-current 2U CRPS
70.8A on +12V for denser 2U CPU/storage loads.
CRPS Cage Programs
Same 230 × 76 × 84 mm body as the 550W SKU.
PMBus Fleets
Telemetry on both 550W and 850W CRPS options.
Dual-feed 2U Racks
Hot-swap modules with independent AC.
Customization Options
Adapt the IS-850R2UPD8UC to your program.
iStarUSA Design-In services cover mechanical, electrical, and lifecycle customization scopes.
Power Supply Options
Branding / Labeling
Long Lifecycle Planning
Two Ways to Buy
Order the standard model — or use it as a platform.
The IS-850R2UPD8UC is available both as a ready-to-ship standard product and as a starting point for OEM/ODM customization. Pick the path that matches your project.
Option A
Use as Standard Product
Order the IS-850R2UPD8UC with its published specifications. Ideal when you need a proven configuration, immediate quotation, and comparable datasheets against other models.
- Published specifications and datasheets
- Standard configuration, ready to quote
- Compatible with existing integrations
Option B
Use as Customizable Platform
Start with the IS-850R2UPD8UC and adapt it for OEM/ODM, Design-In, mechanical modification, or long-term supply programs. Our engineering team supports the full customization scope.
- OEM/ODM branding and mechanical modification
- Design-In engineering support
- Long-lifecycle and BOM stability planning
Related Products
Explore adjacent options.
Product quotation
Request a quote for this model.
Standard or slightly modified builds of IS-850R2UPD8UC can be quoted on this page. For OEM/ODM manufacturing, system build and integration, or data center planning and deployment, start a project.
Start a project
Need more than a catalog quote for IS-850R2UPD8UC?
This page quotes the model. OEM/ODM, system build and integration, and data center planning and deployment each have their own conversation.