ASRock Steel Legend SL-1000P — 1000 W ATX 3.1, 80 PLUS Platinum, Fully Modular
1000 W80 PLUS PlatinumFully modularNative 12V-2x6
The ASRock Steel Legend SL-1000P is a 1000 W ATX 3.1 power supply with 80 PLUS Platinum certification and Cybenetics Platinum / LAMBDA A+ ratings, for high-end gaming PCs and workstations with one powerful graphics card. It delivers 83.4 A on the +12V rail, is PCIe 5.1 ready with a native dual-colour 12V-2x6 (12+4 pin) connector, and supports 200% total power excursion.
All cables are fully modular. A 135 mm striped axial FDB fan with switchable iCOOL mode keeps noise low, the capacitors are all Japanese 105 °C parts, and ASRock adds a built-in 5V Boost function and PCIe 5.1 Cable TempGuard. The unit measures 150 × 150 × 86 mm and carries a 10-year ASRock warranty.
Before you order: At 150 mm long it is deeper than many 140 mm units — check the PSU bay of compact ATX cases and leave space for the modular cable plugs.
What's in the Box
- 1 × ASRock Steel Legend SL-1000P power supply
- Modular cable set (connector counts below)
- Other box contents are not listed by ASRock — ask us for confirmation
What It Means in Practice
- 1000 W covers a single high-end GPU with a high-core-count CPU and leaves headroom for upgrades.
- The native 12V-2x6 cable connects directly to current GPUs; Cable TempGuard is ASRock's temperature safeguard for that connector.
- Nine SATA and three Molex connectors handle large storage builds.
- iCOOL mode keeps the fan slow at lower loads; switch it off if you prefer constant airflow.
What Will Not Work
- It has only one 12V-2x6 connector — for two modern GPUs, look at the SL-1200P.
- It is not SFX and will not fit SFF cases that need SFX/SFX-L.
- Modular cables are specific to this PSU — do not mix in cables from other units.
- No RGB lighting or software monitoring.
Key Features
ATX 3.1 & PCIe 5.1
Native 12V-2x6 with Cable TempGuard and 200% power excursion.
Platinum efficiency
80 PLUS Platinum, Cybenetics Platinum and LAMBDA A+.
Fully modular
Install only the cables you need for a cleaner build.
10-year warranty
All Japanese 105 °C capacitors and full OCP/SCP/OVP/UVP/OTP/OPP protection.
Technical Specifications
| Identification |
| Part Number |
90-UXS100-PFEAAA |
| Model |
Steel Legend SL-1000P |
| EAN / GTIN |
4711581492677 |
| Brand |
ASRock |
| Electrical |
| Rated power |
1000 W |
| Efficiency |
80 PLUS Platinum; Cybenetics Platinum and LAMBDA A+ |
| Standard |
ATX 3.1, PCIe 5.1 |
| AC input |
100 – 240 V~, 50 – 60 Hz, 12 – 6 A |
| +12V continuous |
83.4 A |
| Total power excursion |
200% |
| Protections |
OCP, SCP, OVP, UVP, OTP, OPP |
| Capacitors |
All Japanese (105 °C) |
| Extras |
Built-in 5V Boost · PCIe 5.1 Cable TempGuard |
| MTBF |
100,000 hours @ 25 °C |
| Connectors |
| Motherboard 24-pin |
1 |
| EPS 12V (4+4 pin) |
1 |
| EPS 12V (8 pin) |
1 |
| PCIe 12+4 pin (12V-2x6, dual colour) |
1 |
| PCIe 6+2 pin |
2 |
| PCIe 8 pin |
1 |
| SATA |
9 |
| 4-pin peripheral |
3 |
| Cable design |
Fully modular |
| Physical |
| Fan |
135 mm striped axial FDB, iCOOL mode |
| Dimensions |
150 × 150 × 86 mm |
| Warranty |
| Warranty |
1-Year Warranty (Singular) |
| Manufacturer Term |
10-year ASRock warranty — claims handled through Singular |
Frequently Asked Questions
1000 W or 1200 W?
The SL-1000P suits one high-end GPU. Choose the SL-1200P if you need two 12V-2x6 connectors or more headroom for workstation loads.
What is Cable TempGuard?
ASRock's temperature safeguard for the PCIe 5.1 12V-2x6 cable, aimed at protecting the high-current GPU connector.
Can I reuse cables from my old PSU?
No — modular pinouts differ between brands and models. Use only the SL-1000P cables.
Singular Expert Insight · Buyer's Guide
The SL-1000P is the balanced Steel Legend choice: Platinum efficiency, fully modular cables and a 10-year warranty, sized for one top GPU. Check the 150 mm depth, then compare it in our
PC power supplies.
✓ Buy it if you want a quiet, efficient 1000 W modular PSU for a single high-end graphics card.
✕ Skip it if you plan two modern GPUs (choose 1200 W) or need an SFX unit.
→ Also consider the ASRock Steel Legend SL-1200P for dual-GPU or heavier workstation builds.
Not sure 1000 W is right? Send us your CPU, GPU and drives and we will check the power budget before you order.