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
Two sets of black adapter cables with 24-pin to 18-pin and 8-pin to 12-pin connectors

SMUGDESK

SMUGDESK 2 Set ATX 24Pin to 18Pin & 8Pin to 12Pin Power Adapter Cable Kit

SKU CH-ZKA8-E0AVP

Two sets of 24-pin to 18-pin and 8-pin to 12-pin cables adapt aftermarket power supplies to HP Z440 and Z640 workstation motherboards

  • 2 complete conversion kits for HP Z440 and Z640 workstation upgrades
  • ATX 24Pin to 18Pin main power cable matches motherboard pinout
  • 8Pin to 12Pin auxiliary cable delivers stable power to CPU section
  • Locking connectors prevent loose contact during continuous heavy workload
  • Plug-and-play design enables quick aftermarket power supply replacement

HP Z440 Z640 Power Conversion Kit

This kit provides two complete sets of adapter cables that convert a standard ATX 24Pin main connector and an 8Pin auxiliary connector to the proprietary 18Pin and 12Pin interfaces required by HP Z440 and Z640 workstation motherboards. It enables the use of aftermarket power supplies when the original unit fails or requires an upgrade.

Suited for HP Workstation Maintainers

Ideal for technicians and DIY builders performing power supply replacements on HP Z440 or Z640 systems where the motherboard uses non-standard power pinouts. Not suitable for standard ATX motherboards, other workstation brands, or builders needing adapters for different proprietary pin configurations.

Sustained Load Reliability

Reinforced connectors with locking buckles maintain a secure connection to prevent power interruption during continuous heavy workloads. High-quality conductors minimise voltage loss across the conversion, supporting stable operation throughout extended workstation sessions.

Highlights

  • 2 complete conversion kits for HP Z440 and Z640 workstation upgrades
  • ATX 24Pin to 18Pin main power cable matches motherboard pinout
  • 8Pin to 12Pin auxiliary cable delivers stable power to CPU section
  • Locking connectors prevent loose contact during continuous heavy workload
  • Plug-and-play design enables quick aftermarket power supply replacement

Specifications

No published specifications for this item yet.

Questions about this item

What existing power supply connectors must I already have for the 24Pin to 18Pin and 8Pin to 12Pin adapters to work?

Your replacement power supply must provide a standard ATX 24Pin main connector and an 8Pin EPS/CPU connector for the adapters to plug into.

Will these conversion cables fit the original HP Z440 or Z640 motherboard power sockets without modification?

Yes, the 18Pin and 12Pin ends match the Z440 and Z640 motherboard pin definitions exactly for direct connection.

How can I verify the adapters are delivering stable power after installation?

The workstation should power on, pass POST, and remain stable under sustained heavy workload without unexpected shutdowns.

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.