Description
IEC C20 to PA45/P13 Power Cable — Heavy-Duty Power for the Antminer S21
The Iec c20 to pa45 power cable is a quality power solution for mining setups.
The Antminer S21 series does not use the same power connector as previous-generation Antminers. Bitmain switched to a PA45/P13 locking connector — a beefier, more secure plug designed for the higher power demands of next-gen ASICs. If your PDU, rack, or power strip has standard C19 outlets, this cable is the bridge: a C20 male plug on one end, a PA45/P13 locking connector on the other, with 12 AWG copper wire and ETL certification in between.
At 4 feet and rated for 20A / 4,800W, this cable is built to handle the full power draw of the S21 without breaking a sweat. The SJT PVC jacket is rated to 105 degrees C, and the PA45/P13 connector locks into the S21’s power inlet with a positive click — no accidental disconnections when you bump the rack. D-Central stocks these because we know the S21 connector catches people off guard. Your PDU has C19 outlets. Your S21 has a PA45/P13 inlet. This cable connects the two.
- Purpose-Built for the S21 Connector Change — Bitmain moved to the PA45/P13 locking connector starting with the S21 series. Your existing C13/C14 power cords will not fit. This cable gives you a clean, certified connection from any C19 PDU outlet to the S21’s PA45/P13 inlet. No janky adapters, no force-fitting the wrong plug.
- 12 AWG Copper, 20A Rated — The S21 can pull serious wattage. This cable is built with 12 AWG copper conductors rated for 20 amps continuous — enough to handle the S21’s full power draw with margin. Thicker wire means lower resistance, less heat, and more reliable operation over time.
- ETL Certified — Third-party safety tested and certified by ETL (Intertek). This is not a random cable from an unknown factory. ETL certification means it has been independently verified to meet UL safety standards for power cords. When you are running 3,000W+ through a cable 24/7/365, certification matters.
- Locking PA45/P13 Connector — The PA45/P13 plug clicks and locks into the S21’s power inlet. Unlike standard IEC connectors that can wiggle loose from vibration or an accidental bump, the PA45 locks in place. In a mining operation where uptime is revenue, a locked power connection is not a luxury — it is a requirement.
- 4-Foot Length — Long enough to reach from a standard rack-mounted PDU to the miner, short enough to keep your cable management clean. No excess cable coiled up behind your rack generating unnecessary resistance or heat.
Technical Specifications
| Specification | Value |
|---|---|
| Connector A (PSU/PDU side) | IEC C20 male plug |
| Connector B (Miner side) | PA45/P13 locking connector |
| Wire Gauge | 12 AWG (3-conductor copper) |
| Current Rating | 20A |
| Power Rating | Up to 4,800W (at 240V) |
| Cable Length | 4 feet (~1.2 meters) |
| Jacket Material | SJT PVC |
| Temperature Rating | 105°C |
| Safety Certification | ETL (Intertek) certified |
| Voltage | 125V-250V AC |
Compatibility
| Device | Power Inlet | Compatible? |
|---|---|---|
| Antminer S21 | PA45/P13 | Yes |
| Antminer S21 Pro | PA45/P13 | Yes |
| Antminer S21 XP / S21+ / T21 | PA45/P13 | Yes |
| Any ASIC with PA45/P13 inlet | PA45/P13 | Yes |
| Antminer S19 series | C14 (standard IEC) | No — uses standard C13/C14 power cords |
| Antminer S9 / L3+ / older models | APW3 PSU (6-pin PCIe to miner) | No — different power architecture |
PDU Side: The C20 male plug connects to any standard C19 female outlet. Most rack-mounted PDUs (APC, CyberPower, Tripp Lite, ServerTech) include C19 outlets specifically for high-draw equipment. If your PDU only has C13 outlets, you will need a PDU upgrade or a C14-to-C20 adapter — but for 20A loads, a C19 PDU is the correct setup.
Frequently Asked Questions
Why did Bitmain switch from standard IEC to PA45/P13 on the S21?
The S21 series draws more power and Bitmain wanted a connector that locks in place and handles higher current loads more reliably. The PA45/P13 is a locking connector — it clicks into the miner’s inlet and will not accidentally disconnect from vibration. Standard C13/C14 connectors can wiggle loose over time, especially in mining environments with fan vibration. The PA45 eliminates that failure mode.
Can I use this cable with an S19 or older Antminer?
No. The S19 and all previous Antminer models use a standard C14 inlet (which accepts a C13 plug) or are powered through external PSUs like the APW3/APW7. The PA45/P13 connector on this cable will not physically fit an S19. For S19 models, use a standard C13-to-C14 power cord.
Is 12 AWG necessary, or is 14 AWG fine?
The S21 can draw over 3,000W at peak. At 240V, that is roughly 13A continuous. While 14 AWG is rated for 15A, you want headroom — especially for cables that run 24/7 in a warm environment. 12 AWG gives you a 20A rating with lower resistance and less heat buildup. For continuous high-load mining operations, always go heavier on wire gauge. The cost difference is negligible; the reliability difference is not.
What if my PDU only has C13 outlets?
C13 outlets are typically rated for 10A-15A, which may not be sufficient for an S21 at full power on a 120V circuit. If you are running 240V, a C13 outlet at 15A might technically handle the load, but it is not ideal. For the S21 series, the recommended setup is a PDU with C19 outlets rated for 20A. If you are building or upgrading a mining setup, invest in a proper C19 PDU — it is the correct infrastructure for current-generation ASICs.
Is this cable the same as a generic C20-to-C19 jumper cord?
No. A C20-to-C19 cord has a C19 female connector on the device end. The S21 does not have a C20 inlet — it has a PA45/P13 inlet. A C19 plug will not fit. This cable specifically converts from C20 (PDU side) to PA45/P13 (miner side). That PA45/P13 connector is what makes this cable purpose-built for the S21 generation.
Why did Bitmain switch from standard IEC to PA45/P13 on the S21?
The S21 series draws more power and Bitmain wanted a connector that locks in place and handles higher current loads more reliably. The PA45/P13 is a locking connector — it clicks into the miner’s inlet and will not accidentally disconnect from vibration. Standard C13/C14 connectors can wiggle loose over time, especially in mining environments with fan vibration. The PA45 eliminates that failure mode.
Can I use this cable with an S19 or older Antminer?
No. The S19 and all previous Antminer models use a standard C14 inlet (which accepts a C13 plug) or are powered through external PSUs like the APW3/APW7. The PA45/P13 connector on this cable will not physically fit an S19. For S19 models, use a standard C13-to-C14 power cord.
Is 12 AWG necessary, or is 14 AWG fine?
The S21 can draw over 3,000W at peak. At 240V, that is roughly 13A continuous. While 14 AWG is rated for 15A, you want headroom — especially for cables that run 24/7 in a warm environment. 12 AWG gives you a 20A rating with lower resistance and less heat buildup. For continuous high-load mining operations, always go heavier on wire gauge. The cost difference is negligible; the reliability difference is not.
What if my PDU only has C13 outlets?
C13 outlets are typically rated for 10A-15A, which may not be sufficient for an S21 at full power on a 120V circuit. If you are running 240V, a C13 outlet at 15A might technically handle the load, but it is not ideal. For the S21 series, the recommended setup is a PDU with C19 outlets rated for 20A. If you are building or upgrading a mining setup, invest in a proper C19 PDU — it is the correct infrastructure for current-generation ASICs.
Is this cable the same as a generic C20-to-C19 jumper cord?
No. A C20-to-C19 cord has a C19 female connector on the device end. The S21 does not have a C20 inlet — it has a PA45/P13 inlet. A C19 plug will not fit. This cable specifically converts from C20 (PDU side) to PA45/P13 (miner side). That PA45/P13 connector is what makes this cable purpose-built for the S21 generation.
Shop the Iec C20 To Pa45 Power Cable and more at D-Central Technologies, shipping worldwide from Canada.
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