6 Best Alternatives to the KFXJMY 2U LGA4677 LGA4710 Active (2026)

How alternatives compare to KFXJMY

KLAWKKNI 2U Passive LGA 2011 Cooler

The KLAWKKNI cooler targets LGA 2011 sockets, whereas the KFXJMY supports LGA4677 and LGA4710. This difference in socket compatibility means you cannot use this unit for your specific Intel processors. However, it maintains the same 2U server height profile, fitting into identical chassis spaces. You should choose this option only if your server uses older LGA 2011 hardware. It relies on passive cooling, which requires strong case airflow to function effectively. In contrast, the KFXJMY uses an active fan for direct heat removal. If your airflow is limited, the passive design here may struggle to maintain safe temperatures under load.

CTDOFUM 2U Narrow LGA3647 Active CPU Cooler

The CTDOFUM cooler is designed for LGA3647 sockets, not the LGA4677 or LGA4710 sockets supported by the KFXJMY. This socket mismatch prevents direct installation in your current system. Both units share the 2U height constraint, making them suitable for the same physical server racks. The CTDOFUM model includes a fan for active cooling, similar to the KFXJMY approach. It is built for systems with up to 255W TDP. If you are managing an LGA3647 server, this narrow profile offers a direct alternative. For your specific socket types, this unit is incompatible, but it serves as a comparable active solution for different Intel server generations.

Dynatron 2U Active Server Cooler

The Dynatron Q5 supports LGA1700 sockets, which differs from the LGA4677 and LGA4710 sockets of the KFXJMY. This socket incompatibility limits its use to newer Intel platforms. It shares the 2U server height, allowing it to fit in the same rack space. The Dynatron unit weighs 1.1 pounds, providing a sense of solid construction compared to the lightweight KFXJMY. It supports processors under 125W TDP and features a PWM fan for adjustable speed control. If you are upgrading to an LGA1700 platform in a 2U case, this is a practical choice. For your current LGA4677/4710 setup, you must look elsewhere.

SilverStone 4U SP5 Server Air Cooler

The SilverStone XE04-SP5 is built for AMD SP5 sockets, making it completely incompatible with your Intel LGA4677 or LGA4710 processors. It is also designed for 4U cases, which is twice the height of the 2U KFXJMY. This size difference means it will not fit in your current server chassis. The SilverStone unit uses five heat pipes and a durable fan for robust cooling. It is intended for high-performance workstations rather than compact 2U servers. If you are building a new AMD SP5 system in a larger 4U rack, this cooler offers strong thermal performance. For your specific 2U Intel server needs, this unit is physically and electrically unsuitable.

MDWXDOFP 2U LGA4677 Server Cooler

The MDWXDOFP cooler supports LGA4677 sockets, matching one of the two sockets compatible with the KFXJMY. It shares the 2U server height, ensuring it fits in the same rack space. This model features five heat pipes and is rated for 400W TDP, offering higher thermal capacity than the basic KFXJMY design. It weighs 1.76 ounces, indicating a lightweight construction. If your server uses LGA4677 processors and generates high heat, this unit provides better thermal headroom. The KFXJMY supports both LGA4677 and LGA4710, offering broader socket flexibility. Choose this alternative if you prioritize higher TDP support on LGA4677 over dual-socket compatibility.

NICGQMQR 2U LGA4677 5-Heatpipe Server Cooler

The NICGQMQR cooler supports LGA4677 sockets, aligning with one of the KFXJMY's compatible sockets. It also maintains the 2U server height for identical rack installation. This model includes five heat pipes and a PWM fan, designed for 400W TDP loads. It weighs 1.76 ounces, similar to the MDWXDOFP alternative. The KFXJMY supports both LGA4677 and LGA4710, providing more versatile socket coverage. If you are running 4th or 5th gen Intel Xeon processors in a 2U rack, this unit delivers strong cooling performance. You should select this option if you need higher thermal capacity for LGA4677 systems, accepting the loss of LGA4710 support.

Quick picks

Our 7 picks

1 Best overall

KFXJMY 2U LGA4677 LGA4710 Active Cooler

Best for: 2U servers with LGA4677 or LGA4710

Socket Compatibility

LGA4677, LGA4710

Cooler Height

0.39 inches

Lighting

RGB

System Type

Server

Color

Black

Server Height

2U

View on Amazon: KFXJMY 2U LGA4677 LGA4710 Active Cooler Affiliate link

This KFXJMY cooler is an active server heatsink designed for 2U chassis. It supports LGA4677 and LGA4710 sockets. The unit is compact, measuring 0.39 inches in height. It features a black finish. The cooling method is active, meaning it uses a fan. This unit is built for server environments. It fits systems that require specific socket compatibility and low-profile active cooling. You should verify your chassis dimensions before purchase.

Pros

• Active cooling for LGA4677 and LGA4710 sockets
• 2U server form factor
• Compact 0.39-inch height
• Black finish

Cons

• Very narrow 0.39-inch dimensions may limit airflow
• Data lists RGB lighting but size contradicts standard RGB heatsinks
• No PWM or fan speed settings mentioned in specs

Good fit if

• You need a 2U active cooler for LGA4677
• You are building a server with LGA4710
• You have a 2U chassis with 0.39-inch clearance

Skip if

• You require RGB lighting effects
• You need a standard desktop CPU cooler
• You have a chassis taller than 2U

Verdict: KFXJMY 2U Active LGA4677 LGA4710 Cooler is a specialized active heatsink for 2U servers using LGA4677 or LGA4710 sockets. It fits tight 2U enclosures requiring specific socket support.

2 Best lga 2011

KLAWKKNI 2U Passive LGA 2011 Cooler

Best for: LGA 2011 2U server chassis airflow

Socket Compatibility

LGA 2011

Lighting

RGB

System Type

Server

Color

Black

Server Height

2U

Cooling Method

Passive

View on Amazon: KLAWKKNI 2U Passive LGA 2011 Cooler Affiliate link

This is a passive 2U server heatsink designed for LGA 2011 sockets. It replaces the SNK-P0048PS model and fits X9DRI-F motherboards. The unit features a black finish and includes RGB lighting. It relies on system airflow rather than a built-in fan. You should use this if your server chassis provides adequate cooling for your CPU load.

Pros

• Compatible with LGA 2011 sockets
• Fits 2U server chassis dimensions
• Includes RGB lighting
• Passive design reduces noise

Cons

• Passive cooling requires strong case airflow
• No included fan for direct heat dissipation
• Limited to specific server motherboard form factors

Good fit if

• You need a replacement for an SNK-P0048PS heatsink
• You are building a quiet 2U server
• Your chassis has high static pressure fans

Skip if

• You are using a desktop ATX case
• You need an LGA 1700 or LGA 1200 socket
• You want a plug-and-play cooler with a fan included

Verdict: KLAWKKNI LGA 2011 2U Passive Server Heatsink is a niche component for 2U server builds using LGA 2011 CPUs. It suits users who already have sufficient airflow and need a direct replacement for older passive coolers.

3 Also great

CTDOFUM 2U Narrow LGA3647 Active CPU Cooler

Best for: Narrow LGA3647 2U server racks

Socket Compatibility

LGA3647

Heat Pipes

4

TDP Rating

205W - 255W

Lighting

RGB

System Type

Server

Server Height

2U

View on Amazon: CTDOFUM 2U Narrow LGA3647 Active CPU Cooler Affiliate link

This active 2U server cooler fits Narrow LGA3647 sockets. You get four heat pipes and a thermal rating between 205W and 255W TDP. It delivers direct active cooling for high-density chassis layouts. If you maintain LGA3647 server hardware rather than newer LGA4677 platforms, this unit provides the exact mechanical profile and thermal capacity required for your nodes.

Pros

• 205W to 255W TDP rating
• Four integrated heat pipes
• 2U server chassis form factor
• Active cooling configuration with fan

Cons

• Limits socket support strictly to LGA3647 Narrow
• Omits compatibility with LGA4677 or LGA4710 sockets

Good fit if

• You run a server board with a Narrow LGA3647 socket.
• You need up to 255W TDP heat dissipation in a 2U rack.

Skip if

• You deploy LGA4677 or LGA4710 processors.
• You require a passive heatsink for chassis-ducted airflow.

Verdict: CTDOFUM 2U Narrow LGA3647 Active Cooler delivers dedicated active cooling for administrators maintaining LGA3647 systems under 255W TDP. It fits server racks requiring a compact 2U height profile.

4 Best budget

Dynatron 2U Active Server Cooler

Best for: LGA1700 2U server builds under 125W

Socket Compatibility

LGA1700

TDP Rating

125 Watts

System Type

Server

Server Height

2U

Cooling Method

Active

Dimensions

5 × 5 × 5 inches

View on Amazon: Dynatron 2U Active Server Cooler Affiliate link

The Dynatron Q5 is a 2U active CPU cooler designed for LGA1700 sockets in server environments. It supports up to 125 watts of thermal design power. The unit features a copper base with heat pipes in direct contact with the processor. Aluminum fins and a 4-pin PWM dual ball bearing fan provide active cooling. It measures 5 inches on each side and weighs 1.1 pounds.

Pros

• Supports LGA1700 sockets
• Handles up to 125 watts TDP
• Copper base with direct contact heat pipes
• 4-pin PWM dual ball bearing fan

Cons

• Limited to LGA1700 socket compatibility
• Only supports up to 125 watts TDP
• Fixed dimensions of 5x5x5 inches

Good fit if

• You need a cooler for an LGA1700 server
• Your CPU thermal design power is 125 watts or less
• You require a 2U form factor active cooler

Skip if

• You use a socket other than LGA1700
• Your CPU exceeds 125 watts TDP
• You need a passive cooling solution

Verdict: The Dynatron Q5 2U LGA1700 Active Cooler fits 2U server builds with LGA1700 processors under 125 watts. It offers direct copper base contact and PWM fan control for reliable thermal management.

5 Best premium

SilverStone 4U SP5 Server Air Cooler

Best for: AMD SP5 workstations in 4U cases

Socket Compatibility

SP5

Heat Pipes

5

System Type

Server, Workstation

Color

Black

View on Amazon: SilverStone 4U SP5 Server Air Cooler Affiliate link

The SilverStone XE04-SP5 is a 4U active cooler designed for Intel and AMD SP5 sockets in server and workstation builds. It uses five 8 mm heat pipes and aluminum fins to move heat efficiently. The unit features a dual ball bearing fan with PWM control for reliable operation. This cooler suits users who need stable thermal performance in a compact 4U chassis.

Pros

• Five 8 mm heat pipes for high thermal conduction
• Dual ball bearing fan for long-term reliability
• PWM controlled fan for adjustable speed
• Compatible with AMD SP5 sockets

Cons

• 4U height is too large for standard 2U server racks
• Only supports AMD SP5 sockets, not Intel LGA4677 or LGA4710
• Black color may not match all chassis aesthetics

Good fit if

• You are building a workstation with an AMD SP5 socket
• You have a 4U chassis with enough vertical clearance
• You need a reliable fan with dual ball bearings

Skip if

• You are using an Intel LGA4677 or LGA4710 socket
• You are limited to a 2U server chassis
• You need compatibility with older AMD sockets

Verdict: SilverStone XE04-SP5 SP5 Server Cooler is a solid choice for AMD SP5 workstations in 4U cases. It offers reliable cooling through five heat pipes and a durable fan, but it does not fit Intel LGA4677 or LGA4710 systems.

6 Also great

MDWXDOFP 2U LGA4677 Server Cooler

Best for: LGA4677 server builds needing 400W TDP

Socket Compatibility

LGA4677

Heat Pipes

5

TDP Rating

400W

System Type

Server

Server Height

2U

Weight

1.76 ounces

View on Amazon: MDWXDOFP 2U LGA4677 Server Cooler Affiliate link

This is a 2U server heatsink designed for LGA4677 sockets. It uses five copper heat pipes to transfer heat from the CPU to the aluminum fins. The unit supports a TDP rating of 400W and includes a high-speed PWM fan for active cooling. It weighs 1.76 ounces and comes in a silver finish. You should choose this if you need a compact, high-performance solution for 4th or 5th generation Intel processors in a server chassis.

Pros

• Five heat pipes for efficient heat transfer
• Supports up to 400W TDP
• High-speed PWM fan included
• Compact 2U form factor

Cons

• Limited to LGA4677 socket compatibility
• No mention of included mounting brackets
• Heavier than passive alternatives

Good fit if

• You are building a server with an LGA4677 processor
• You need a 2U height compatible cooler
• You require support for high TDP CPUs

Skip if

• You use a socket other than LGA4677
• You need a passive cooling solution
• You require compatibility with LGA4710

Verdict: MDWXDOFP 2U LGA4677 5-Heat Pipe Cooler is a solid choice for 4th or 5th gen Intel servers. It fits well if you need 400W TDP support in a 2U chassis.

7 Also great

NICGQMQR 2U LGA4677 5-Heatpipe Server Cooler

Best for: LGA4677 server systems in 2U racks

Socket Compatibility

LGA4677

Heat Pipes

5

TDP Rating

400W

System Type

Server

Server Height

2U

Weight

1.76 ounces

View on Amazon: NICGQMQR 2U LGA4677 5-Heatpipe Server Cooler Affiliate link

This NICGQMQR heatsink is built for 2U server chassis and supports LGA4677 sockets used in 4th and 5th generation Intel processors. It features five heat pipes and a high-speed PWM fan to handle up to 400W TDP. The unit weighs just 1.76 ounces and comes in silver. It is a practical option for data centers needing reliable cooling for high-power server CPUs in compact form factors.

Pros

• Supports LGA4677 sockets for 4th and 5th gen CPUs
• Rated for 400W TDP thermal output
• Uses five heat pipes for efficient heat transfer
• Includes high-speed PWM fan control
• Compact 2U server form factor

Cons

• Limited to LGA4677 socket compatibility
• No mention of bracket options in base listing
• Lightweight build may feel less robust

Good fit if

• You need a cooler for LGA4677 server CPUs
• You require support for high TDP processors up to 400W
• You are building a 2U server chassis

Skip if

• You use LGA2011 or LGA1700 sockets
• You need passive cooling without fans
• You require support for consumer desktop sockets

Verdict: NICGQMQR 2U LGA4677 Server Cooler is a solid choice for data centers running 4th or 5th gen Intel Xeon processors in 2U racks. It delivers strong thermal headroom for 400W loads through its five heat pipes and PWM fan.

Specifications side by side

Frequently asked questions

See also

• gperhuan 4u server chassis alternatives
• alphacool es reservoir 2u alternatives