Storage and connectivity maker OWC (Other World Computing) is running a limited-time promotion on some of its most popular Mac accessories, with discounts spanning Thunderbolt docks, external storage enclosures, and USB-C cables. The sale covers seven products and runs through Monday, September 21 at 12:00 a.m. CST.

The deals are applied automatically at checkout, so shoppers only need to add a qualifying item to their cart to see the reduced price. The lineup includes two docks, three enclosures, and two cables, with savings reaching as high as $205 on a single product.

Thunderbolt docks for expanding a Mac setup

Two docks anchor the promotion. The OWC 11-Port Thunderbolt 5 Dock drops to $229.99 from $319.99, a $90 reduction, while the standard OWC 11-Port Thunderbolt Dock falls to $179.99 from $229.99, saving $50. Both models add 11 additional ports to a Mac, expanding options for displays, storage, peripherals, and charging from a single connection.

External storage enclosures see the steepest cuts

The largest discount in the sale applies to the OWC Express 4M2 Ultra Enclosure, which is marked down to $244.99 from $449.99 — a $205 saving. It is joined by two other storage options: the OWC Express 1M2 80G Enclosure at $114.99 (down from $149.99) and the OWC ThunderBay 4 Enclosure at $309.99 (down from $399.99). The ThunderBay 4 is a desktop RAID system aimed at users who need higher-capacity, higher-performance storage for tasks such as video editing or backups.

USB-C cables round out the deals

Two cables are also on offer. The OWC Thunderbolt 5 USB-C Cable in a 1.0-meter length is available for $19.99, reduced from $34.99, while the OWC Thunderbolt 4 USB-C Cable in a 2.0-meter length costs $39.99, down from $57.99. These accessories are relevant for anyone connecting the docks and enclosures above, since matching the correct Thunderbolt cable is essential to reaching advertised transfer speeds.

Here is the full list of discounted items:

  • OWC 11-Port Thunderbolt Dock — $179.99 (was $229.99)
  • OWC 11-Port Thunderbolt 5 Dock — $229.99 (was $319.99)
  • OWC Express 1M2 80G Enclosure — $114.99 (was $149.99)
  • OWC Express 4M2 Ultra Enclosure — $244.99 (was $449.99)
  • OWC ThunderBay 4 Enclosure — $309.99 (was $399.99)
  • OWC Thunderbolt 5 USB-C Cable, 1.0M — $19.99 (was $34.99)
  • OWC Thunderbolt 4 USB-C Cable, 2.0M — $39.99 (was $57.99)

Why the timing matters

OWC accessories frequently target Mac users who want to extend the limited port selection on modern MacBooks and Mac desktops, so a discount on both docks and Thunderbolt storage in the same window offers a useful opportunity for anyone building or upgrading a workstation. With the promotion closing on September 21, the window to take advantage is short. Buyers should confirm that a given enclosure or cable matches the Thunderbolt standard supported by their Mac before purchasing to ensure they get the intended performance.