What is the recommended cable length?

Everyone is using different hardware and cable routing methods, so there is no definite answer to this. But you may just make use of any cables in hand and simulate how you want to route the cable to confirm what is the perfect length for you.

As a reminder, you should always add a few extra CM when measuring the length due to wire curvature. The cable will work perfectly fine with a few CM more, but it will definitely not work when it is 1cm too short.

The majority of the PSU manufacturers stick with 50cm in average, which is sufficient for most mid-size cases. Of course, other factors such as whether you have a top-mounted or bottom-mounted PSU can impact your cable length requirements.

Below are some ITX/SFF references for you. Some customers ordered these lengths for those computer cases.

These lengths are for your reference only! There are many factors which will affect the required cable length.

NCASE M2

• 24pin Main = 20cm
• 8pin CPU/EPS = 30cm
• 8pin PCIE or 12VHPWR = 40cm

Cooler Master NR200P

• 24pin Main = 20cm
• 8pin CPU/EPS = 30cm
• 8pin PCIE or 12VHPWR = 40cm

NCASE M2

• 24pin Main = 30cm
• 8pin CPU/EPS = 40cm
• 8pin PCIE or 12VHPWR = 30cm

Cooler Master NR200P

• 24pin Main = 15cm
• 8pin CPU/EPS = 30cm
• 8pin PCIE or 12VHPWR = 35cm

FormD T1

• 24pin Main = 15cm
• 8pin CPU/EPS = 30cm
• 8pin PCIE or 12VHPWR = 35cm

Sliger Cerberus

• 24pin Main = 30cm
• 8pin CPU/EPS = 40cm
• 8pin PCIE or 12VHPWR = 20cm

FormD T1 v2

• 24pin Main = 18cm
• 8pin CPU/EPS = 30cm
• 8pin PCIE or 12VHPWR = 35cm

Corsair 5000T

• 24pin Main = 60cm
• 8pin CPU/EPS = 60cm
• 8pin PCIE or 12VHPWR = 60cm

T1 v2.1

• 12VHPWR = 20cm

Meshroom S v2

• 24pin Main = 70cm
• 8pin CPU/EPS = 40cm
• 8pin PCIE or 12VHPWR = 20cm
• 15pin SATA = 10cm

Formd T1 v2.1

• 24pin Main = 20cm
• 8pin CPU/EPS = 30cm
• 8pin PCIE or 12VHPWR = 40cm

Cooler Master MasterBox NR200P White

• 24pin Main = 25cm
• 8pin CPU/EPS = 43cm
• 8pin PCIE or 12VHPWR = 10cm

SSUPD Meshlicious Tempered Glass

• 24pin Main = 50cm
• 8pin CPU/EPS = 50cm
• 8pin PCIE or 12VHPWR = 50cm

NCASE M2 Silver Grater - First SFF Build

• 24pin Main = 20cm
• 8pin CPU/EPS = 30cm
• 8pin PCIE or 12VHPWR = 30cm

Ncase M2 build

• 24pin Main = 40cm
• 8pin CPU/EPS = 45cm
• 8pin PCIE or 12VHPWR = 40cm

FormD T1 v2.1

• 24pin Main = 20cm
• 8pin CPU/EPS = 30cm
• 8pin PCIE or 12VHPWR = 40cm

NCASE M2 Grater Silver Build and Setup

• 24pin Main = 30cm
• 8pin CPU/EPS = 40cm
• 8pin PCIE or 12VHPWR = 30cm

Ncase M2 Grater Build

• 24pin Main = 30cm
• 8pin CPU/EPS = 40cm
• 8pin PCIE or 12VHPWR = 30cm

FormD T1 v2.1

• 24pin Main = 15cm
• 8pin CPU/EPS = 30cm
• 8pin PCIE or 12VHPWR = 40cm

ncase m2

• 24pin Main = 60cm
• 8pin CPU/EPS = 70cm

NCASE M1 EVO

• 8pin PCIE or 12VHPWR = 20cm

NCASE M2 Round

• 8pin PCIE or 12VHPWR = 20cm

Lian Li O11 Dynamic Evo XL

• 8pin PCIE or 12VHPWR = 50cm

FORMD T1 V2.1

• 24pin Main = 20cm
• 8pin CPU/EPS = 30cm
• 8pin PCIE or 12VHPWR = 20cm
• SATA/MOLEX = 10cm

NCASE M2

• 24pin Main = 30cm
• 8pin CPU/EPS = 40cm
• 8pin PCIE or 12VHPWR = 30cm

FormD T1

• 24pin Main = 20cm
• 8pin CPU/EPS = 30cm
• 8pin PCIE or 12VHPWR = 30cm

NCASE M2 Grater

• 24pin Main = 30cm
• 8pin CPU/EPS = 50cm
• 8pin PCIE or 12VHPWR = 30cm

FormD T1

• 24pin Main = 15cm
• 8pin CPU/EPS = 30cm

Updated on: 10/07/2025