Special B2B pricing available after sign-in

be quiet! BC021 CS-3420 Modular SATA Power Cable, 2x SATA, 400 mm, 18 AWG, Sleeved, for be quiet! PSUs

Brand:
be quiet!
be quiet! SATA POWER CABLE CS-3420 Power cable SATA BC021
be quiet! BC021 CS-3420 Modular SATA Power Cable, 2x SATA, 400 mm, 18 AWG, Sleeved, for be quiet! PSUs
€8.78 inc. VAT
Buy
BC021
€7.38
€8.78 inc. VAT
Ships from EU stock: 9 item(s)
Product Code
04:130444
EAN Code
4260052183403
Manufacturer
be quiet!

Quick Specs

Type
Modular PSU cable, SATA power
Connectors
PSU modular plug to 2x SATA
Key spec
400 mm · 18 AWG · sleeved
Compatibility
be quiet! modular PSUs (see list)
Delivery

Order Today...
Ships...
Delivery...
ℹ️ Large or fragile items (e.g. monitors) may require extra handling time. We'll keep you informed.
Payment options
✓ Bank Deposit
Secure checkout with flexible payment methods
Trusted Tech Choice
Buying Benefits Verified
Competitive EU pricing
Delivered to Cyprus from EU stock
Local warranty support

be quiet! BC021 (CS-3420) · Modular SATA power cable, 2x SATA, 400 mm

PSU → 2x SATA400 mm18 AWGIndividually sleeved

The be quiet! CS-3420 (BC021) is an individually sleeved modular SATA power cable for be quiet! power supplies. It plugs into a modular port on the PSU and powers 2 SATA devices such as SSDs, hard drives, optical drives or fan and RGB hubs that take SATA power.

The first connector sits 300 mm from the PSU plug and the second at the end of the 400 mm run, so it suits two drives stacked in the same cage.

Before you order: Works only with be quiet! modular power supplies of these series: Dark Power Pro 10 and newer, Straight Power 10 and newer, Pure Power 9 and newer, Power Zone, SFX L Power, System Power 9 and newer. Modular cables are not standardised across brands or even across PSU generations, so a be quiet! cable must never be connected to another brand's PSU. Not sure about your unit? Send us the PSU model and we will check it.

What's in the Box

  • 1 x be quiet! CS-3420 modular SATA power cable (2x SATA, 400 mm)

What It Means in Practice

  • Replaces a missing or lost SATA cable from a be quiet! modular PSU, or adds one more SATA run when the original cables are already in use.
  • Two connectors on one cable free up a modular port on the PSU compared with running two single cables.
  • The individual sleeving looks tidy in cases with a window and is easy to route behind the motherboard tray.

What Will Not Work

  • It does not fit non-be quiet! power supplies, and using it on another brand can damage the drives.
  • It does not fit older be quiet! series than those listed (for example Straight Power 9 or Pure Power 8 and older).
  • It does not power PCIe graphics cards, CPU (EPS) sockets or Molex devices.
  • The two connectors are close together, so it will not serve drives far apart in the case, such as one in the bottom cage and one behind the motherboard.

Technical Specifications

Identification
Part Number BC021
Model CS-3420
EAN / GTIN 4260052183403
Brand be quiet!
Connectivity
PSU end be quiet! modular connector
Device end 2x SATA power
Electrical
Wire gauge 18 AWG
Physical
Total length 400 mm
Length to first connector 300 mm
Sleeving Individually sleeved
Colour Black
Warranty
Warranty 1-Year Warranty (Singular)
Manufacturer Term 3 years (be quiet!) — claims handled through Singular

Frequently Asked Questions

Will it work with my Corsair, Seasonic or other PSU?
No. Modular pinouts differ between brands; use it only with the be quiet! series listed.
Will it work with a Straight Power 11 or 12?
Yes, Straight Power 10 and newer are on be quiet!'s compatibility list.
Can I use it to power an SSD and a fan hub?
Yes, any device with a SATA power input works, up to 2 devices on this cable.
Singular Expert Insight · Buyer's Guide
Never mix modular cables between PSU brands — the plug fits, but the pinout may not, and that is how drives get damaged. Measure from the PSU modular port to the first drive along the real route — the first connector sits at 300 mm. See our PC power supplies.
✓ Buy it if you have a be quiet! modular PSU from the listed series and need 2 more SATA connectors.
✕ Skip it if your PSU is from another brand or an older be quiet! series.
→ Also consider
Not sure your PSU is compatible? Send us the model and we will confirm before you order.

Features - be quiet! - BC021

Colour
black
More Details
Product Code
04:130444
EAN Code
4260052183403
Manufacturer
be quiet!
  • Recently Viewed
  • Customers Also Bought
 
Why Buy from Singular

Trusted by businesses across Cyprus

Genuine products, EU stock, and expert support for every purchase.
✓ Genuine Products
Sourced through official distribution channels, with full manufacturer warranty.
✓ EU Stock
Shipped from our EU distribution network, with real-time availability on every product.
✓ B2B Ready
VAT invoices for business deduction and credit terms for verified buyers.
Expert Support
Talk to our team for sizing, configuration or volume orders.