We are currently unable to ship orders from WA State through April 9th due to a government-mandated shutdown for COVID-19. Orders shipping from Koolance Korea, manufacturing, and development are unaffected during this period.

We will continue to answer email. Backorders can still be placed through our website, which will be shipped once restrictions are lifted. (Payment is required for backorders later when they are being prepared.)



HD-40-L06 Water Block (Hard Drive) [06mm, 1/4in]

Part No. HD-40-L06 This product is archived and displayed for information only. It is no longer available for purchase. Released: 10 January 2005
ID: 6mm (1/4")
OD: 10mm (3/8")
Wall: 2mm (5/64")
Intended Tubing Size

The HD-40-L06 is shorter in length than earlier coolers, with angled fittings for compatibility with most side-mounted hard drives bays (such as the Koolance PC3-720, PC3-420, and PC3-410).

Made of anodized aluminum, the hard drive liquid cooler captures heat from the spindle motor and printed circuit boards of IDE, SCSI, and SATA drives. A unique thermal gap filler keeps a flush contact with the device.

Weight 1.14 lb (0.52 kg)

Liquid Coolants

Koolance's product warranty does not cover the use of 3rd-party coolants, coolant additives, or corrosion. Koolance LIQ-702 or LIQ-705 coolants are strongly recommended to help avoid issues with mixed metals or biological growth. Additionally, do not use aluminum with bare (unplated) copper or bare (unplated) brass in the same system. Do not use silver with nickel in the same system.