Another cooler by Scythe, the Rasetsu, is much smaller in size than the massive Ninja 3 we previously presented. The fan included, the cooler weighs only 730 grams. The top-design Rasetsu is a low-profile cooler, which combines the design of the Yasya CPU Cooler with a top-flow layout. The newly developed T.M.L.F.(Trident Multi Layer Fin) structure provides a higher intake volume, thus enabling a more efficient use of the unparallel Six Heatpipe Construction. Equipped with new "Slip Stream 120 PWM Adjustable" fan, you can manually adjust the bandwidth between 470 to 1,370 rpm and 740 to 1,900 rpm. Rasetsu using the VTMS-Versatile Tool-Free Multiplateform System for quick and safe mounting.

- Features

V.T.M.S. (Versatile Tool-Free Multiplatform System)
Improved Version of TVMS allows multiplatform installation without any tools.

Twist Intersected pipe Structure
Twisted intersected 6 heatpipes achieved high heat transfer structure concentrated onto topflow heatsink layout.

Trident Multi Layer Fin Structure
By placing the number of triangle shaped main & supplemental heatsink fins to maximize the air intake volume, heat absorb rate from the built-in heatpipes is ideal for extreme over-clocking purposes as well as to cool the high-end multi-core CPU.

Slip Stream120 PWM Adjustable
Equipped with Scythe original Slip Stream 120PWM Adjustable fan, it allows a user to choose the fully automatic PWM feature fan speed control or alternatively adjust the PWM band range to fulfill demands from silent to high performance users.

- Specifications

Compatibility:
Intel® LGA1366 Processor Intel® Core™ i7 Processor Extreme Edition Series Intel® Core™ i7 Processor 9xx Series
Intel® LGA1156 Processor Intel® Core™ i7 Processor 8xx Series Intel® Core™ i5 Processor Series
Intel® LGA775 (SocketT) Processor Quad-Core Intel® Xeon® Processor 3200 Series Dual-Core Intel® Xeon® Processor 3000 Sequence Intel® Core™2 Extreme processor Intel® Core™2 Quad processor Intel® Core™2 Duo processor Intel® Core™ Duo Processor Intel® Pentium® Processor Extreme Edition Intel® Pentium® D Processor Intel® Pentium® Processor Intel® Pentium® 4 Processor Extreme Edition supporting Hyper-Threading Technology Intel® Pentium® 4 Processor supporting Hyper-threading Technology Intel® Celeron® D Processor
Intel® Socket478 Processor Intel® Pentium® 4 Processor Extreme Edition supporting Hyper-Threading Technology Intel® Pentium® 4 Processor supporting Hyper-threading Technology Intel® Pentium® 4 Processor Intel® Celeron® D Processor Intel® Celeron® Processor
AMD Socket AM3 Processor AMD Phenom™ II X4 Processor AMD Phenom™ II X3 Processor AMD Phenom™ II X2 Processor AMD Athlon™ II X4 Processor AMD Athlon™ II X3 Processor AMD Athlon™ II X2 Processor AMD Sempron™ Processor AMD Socket AM2+ Processor AMD Phenom™ II X4 Processor AMD Phenom™ X4 Processor AMD Phenom™ X3 Processor AMD Athlon™ X2 Processor AMD Socket AM2 Processor AMD Athlon™ X2 Processor AMD Athlon™ FX Processor AMD Athlon™ Processor AMD Sempron™ Processor AMD Socket940 Processor AMD Phenom™ X3 Processor AMD Athlon™ FX Processor AMD Socket939 Processor AMD Athlon™ X2 Processor AMD Athlon™ FX Processor AMD Athlon™ Processor AMD Socket754 Processor AMD Athlon™ Processor AMD Sempron™ Processor

- Retail package

Here are the contents of the Rasetsu: The cooler itself, the mounting hardware for both AMD and Intel sockets, a small packet of performance thermal paste, and your handy man installation guide.

The Rasetsu combines the design of the Yasya CPU Cooler with a top-flow layout. There are two aluminum fins arrays hung on six 6mm heat pipes. The thickness of the fins is 0.35 mm and the same distance apart (1.8 mm). The Rasetsu uses the Trident Multi Layer Fin structure.

Three heat pipes are coming through each heatsink section. They cross each other intricately before entering the heatsink fins. Scythe calls this a "twisted intersected heatpipe structure" and it is supposed to achieve high heat transfer.

The cooler’s nickel-plated copper base measures 47 x 50 millimeters and is 2 millimeters thick. It is well-finished but not to a mirror shine:

- Installation

Rasetsu mounts quickly and easily via pushpins for Intel, or a clamp-down system for mounting on AMD boards.