We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Black 3 ft IEC C20 male to C21 female heavy duty power extension cord

Cable Leader

Cable Leader 3ft IEC C20 to C21 12 AWG 20A 250V Black computer power extension cord

SKU CH-B8C1-DT58Z

A 3 ft heavy-duty 12 AWG cord extends a C20-to-C21 connection at 20A and 250V with UL and CSA certification

  • ColorBlack
  • Length3 ft.

Length 3ft

  • Extends C20/C21 reach between PDU, UPS or server and existing cord
  • Heavy-duty 12 AWG copper handles 20A at 250V for rack loads
  • IEC 60320 connectors fit standard server, switch and AV gear
  • Black jacket enables quick circuit and phase identification
  • UL Listed, CSA certified (E210037) and RoHS compliant

C20-to-C21 rack extension cord

This three-foot black cord extends a C20/C21 power link between a rack PDU or UPS and your server or switch gear. A male IEC 60320 C20 plug connects to the power source while a female C21 socket accepts your existing cord without an adapter. The 12 AWG SJT jacketed cable uses three-conductor grounded copper rated for 20 A at 250 V. It carries UL and CSA certification (file E210037) and meets RoHS requirements.

Check your existing C20/C21 connection

Verify that your power source presents a C20 inlet and that the equipment cord you want to extend terminates in a C21 plug. The cord adds reach but does not convert between different IEC 60320 types, so mismatched connectors will not mate. Ensure the rack or cabinet has enough clearance for the extra three feet of cable run. Buyers who need a different IEC pairing or a longer reach will need another cable.

Thermals noise and power draw

The SJT jacket is rated to 105 C and 300 V, so the cable handles continuous 20 A loads without overheating in normal rack temperatures. Passive copper conductors produce no audible noise and add negligible voltage drop over the short length. Power draw is determined entirely by the connected equipment, not by the extension itself. The heavy-duty 12 AWG construction suits 20 A server and PDU circuits rather than lighter 10 A or 15 A applications.

Highlights

  • Extends C20/C21 reach between PDU, UPS or server and existing cord
  • Heavy-duty 12 AWG copper handles 20A at 250V for rack loads
  • IEC 60320 connectors fit standard server, switch and AV gear
  • Black jacket enables quick circuit and phase identification
  • UL Listed, CSA certified (E210037) and RoHS compliant

Specifications

ColorBlack
Length3 ft.

Other versions of this model

4 more in the same range

Same family, different memory, cooler or clock — compare before you commit.

Questions about this item

What comes in the box and is any extra hardware needed?

The package contains the 3 ft black IEC 60320 C20 to C21 extension cord only; no additional hardware or adapters are required to connect a PDU, UPS or server to your existing C20 cord.

Which gauge should I pick for a 20 A server load?

The 12 AWG version is rated for 20 A at 250 V and is the correct choice for heavy-duty 20 A equipment; thinner gauges such as 14 AWG (15 A) or 16 AWG (13 A) would be undersized.

What does the 20 A / 250 V rating mean once the cord is installed in a rack?

It means the 12 AWG SJT cable with 105 °C / 300 V insulation can continuously carry 20 A at up to 250 V, so a fully loaded 20 A PDU outlet or UPS circuit will run within the cord’s UL Listed and CSA certified limits.

New to this? Which coin should you pay with — what to check, what it costs to pay, and what is never asked for.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.