6 Best Alternatives to the Bykski B-RAM-D4-X-V2 Four Memory Water (2026)

How alternatives differ from Bykski

Alphacool Eisdecke D5 Plexi Pump Top

The Alphacool Eisdecke D5 Plexi Pump Top serves a completely different purpose than the Bykski RAM block. It is designed as a reservoir top for a D5 pump, not for cooling memory sticks. You get a clear acrylic construction that weighs 0.44 kilograms, compared to the heavier 12.8-ounce copper RAM block. This item provides multiple port options for tubing, offering flexibility in loop layout. It lacks any RGB lighting or direct component cooling capability. If you are building a custom loop and need a sturdy, visible pump top, this is a practical choice. It does not replace the need for a RAM water block in your system.

Alphacool NexXxoS XT45 50mm Full Copper Radiator

The Alphacool NexXxoS XT45 50mm Full Copper Radiator is a heat dissipation component, not a cold plate for RAM. It features an all-copper design with a black finish, weighing 0.36 kilograms. Its 50mm thickness makes it ideal for tight spaces where standard radiators will not fit. This radiator helps cool the entire loop, including the memory, but it does not touch the RAM modules directly. The Bykski block transfers heat from the chips to the coolant, while this radiator rejects that heat to the air. You should choose this if you need compact, high-efficiency cooling for a dense custom loop. It complements the Bykski block rather than replacing it.

PrimoChill ZEAGINAL Z16 Distro Plate with Pump

The PrimoChill ZEAGINAL Z16 Distro Plate is a specialized distribution plate for the ZEAGINAL Z16 case. It weighs 5 pounds and includes an integrated pump and 5v Addressable RGB lighting. Unlike the Bykski RAM block, which cools specific memory modules, this plate distributes coolant to various components in a pre-configured manner. It is made of PMMA and is not compatible with other chassis. You would pick this if you own the specific ZEAGINAL Z16 case and want a unified, aesthetic cooling solution. It offers a different approach to loop management but does not provide the targeted, high-performance cooling for DDR4 RAM that the Bykski block is engineered for.

Tangxi 480mm Aluminum 18-Tube Radiator

The Tangxi 480mm Aluminum Radiator offers significant surface area for heat rejection in a pure aluminum loop. It weighs 1.81 pounds and features G1/4 thread compatibility. This component cools the coolant as it circulates, rather than cooling the RAM directly like the Bykski block. The aluminum construction differs from the nickel-plated copper of the RAM block, which may affect compatibility with certain coolants. You should consider this if you need robust cooling capacity for a larger loop. It does not have RGB lighting or direct memory contact. It is a functional radiator that supports the overall thermal performance of a system that includes a dedicated RAM water block.

Bykski O11 Dynamic XL Distro Plate with DDC Pump

The Bykski O11 Dynamic XL Distro Plate is designed specifically for LIAN LI O11 Dynamic XL cases. It weighs 10 pounds and includes a DDC pump with armor and 5v Addressable RGB lighting. This heavy PMMA plate distributes coolant throughout the loop but does not cool RAM modules directly. It is a case-specific solution that simplifies installation for owners of that particular chassis. The Bykski RAM block is a standalone component that fits various cases. You would choose this distro plate if you want an integrated pump and distribution system for your O11 XL. It offers convenience but lacks the specific thermal focus on memory chips that the RAM block provides.

Bykski InWin 925 Distro Plate with DDC Pump

The Bykski InWin 925 Distro Plate is another case-specific solution, this time for the InWin 925 chassis. It weighs 10 pounds and features a DDC pump with armor and 5v Addressable RGB lighting. Like the O11 version, it serves as a loop centerpiece and coolant distributor. It does not directly cool RAM sticks. The heavy PMMA construction and integrated pump offer a streamlined build process for InWin 925 owners. However, it is not a substitute for a dedicated RAM water block. You should pick this if you own the InWin 925 and want a unified aesthetic. For optimal DDR4 cooling, you would still need a separate block like the B-RAM-D4-X-V2.

Quick picks

Our 7 picks

1 Best overall

Bykski B-RAM-D4-X-V2 RAM Block

Best for: custom loop builders using DDR4 RAM

Lighting

5V ARGB

Material

Nickel-plated copper, PMMA acrylic

Weight

12.8 ounces

View on Amazon: Bykski B-RAM-D4-X-V2 RAM Block

The Bykski B-RAM-D4-X-V2 is a four-slot memory water block designed for DDR4 modules. It features a nickel-plated copper cold plate and a PMMA acrylic top. The unit includes 5V addressable RGB lighting and weighs 12.8 ounces. It requires specific Bykski memory heat spreaders for proper installation. This block suits users building custom loops who want targeted cooling for high-demand systems.

Pros

• Nickel-plated copper construction for corrosion resistance
• Includes mounting screws and installation hardware
• Supports 5V addressable RGB lighting
• Designed to work with B-MR-COV heat spreaders

Cons

• Requires separate purchase of compatible heat spreaders
• Limited to DDR4 memory modules only
• No software control mentioned for RGB effects

Good fit if

• You are building a custom liquid cooling loop for DDR4 RAM
• You already own Bykski memory heat spreaders
• You want a nickel-plated copper block with RGB lighting

Skip if

• You are using DDR5 memory modules
• You want an all-in-one cooler with no assembly
• You need software control for lighting effects

Verdict: Bykski B-RAM-D4-X-V2 RAM Block is a solid choice for custom loop builders using DDR4 RAM who need reliable heat transfer and RGB aesthetics. It fits users who already have the required heat spreaders and prefer a durable nickel-plated copper design.

2 Best budget

Alphacool Eisdecke D5 Plexi Pump Top

Best for: D5 pump reservoir tops with multiple ports

Material

Plexi

Thread Size

G1/4"

Radiator Size

40mm

Pump Compatibility

D5

Coolant Color

Clear

Dimensions

3.15 × 3.15 × 1.57 inches

View on Amazon: Alphacool Eisdecke D5 Plexi Pump Top

This acrylic pump top is designed for D5 pumps. It includes stands that raise the profile to 87 mm. You get five G1/4 ports for tubing. The unit weighs 0.44 kg and comes in clear or black. It suits builders who want a visible reservoir top with flexible port options for custom loops.

Pros

• Five G1/4 ports for tubing connections
• Includes three G1/4 plugs for unused ports
• Acrylic material for clear visibility
• Stands included for elevation

Cons

• Pump is not included
• Limited to D5 pump compatibility
• No RGB lighting features

Good fit if

• You are building a custom loop with a D5 pump
• You want multiple connection points for tubing
• You prefer a clear acrylic aesthetic

Skip if

• You need an all-in-one cooling solution
• You do not plan to use a D5 pump
• You want integrated RGB lighting

Verdict: Alphacool Eisdecke D5 Pump Top V.3 fits builders who need a sturdy, clear top for a D5 pump with multiple port options. It is a solid choice for custom loops where visibility and flexibility matter.

3 Best copper

Alphacool NexXxoS XT45 50mm Full Copper Radiator

Best for: Compact high-performance custom cooling loops

Radiator Size

50mm

Material

Copper

Thread Size

G1/4

Dimensions

3.94 × 2.36 × 1.97 inches

Weight

0.36 kilograms

View on Amazon: Alphacool NexXxoS XT45 50mm Full Copper Radiator

This Alphacool NexXxoS XT45 radiator uses pure copper for all water-bearing parts, including pre-chambers, channels, and fins. The 50mm thickness provides high thermal conductivity for dissipating significant heat. It measures 3.94 inches in length and weighs 0.36 kilograms. You will appreciate its superior cooling performance compared to aluminum options when building a loop that requires efficient heat rejection in compact spaces.

Pros

• Pure copper construction for all water-bearing components
• High thermal conductivity for better heat dissipation
• Compact 50mm thickness fits tight spaces
• Lightweight at 0.36 kilograms

Cons

• 50mm thickness offers less surface area than thicker radiators
• No included fans or mounting hardware listed
• Limited to smaller form factors due to size

Good fit if

• You need maximum thermal performance in a very thin radiator
• You are building a custom loop with limited depth
• You prefer pure copper components for longevity and efficiency

Skip if

• You require a radiator thicker than 50mm for high heat loads
• You want an all-in-one solution with included fans
• You need a larger surface area for passive cooling

Verdict: Alphacool 50mm Pure Copper Radiator is ideal for builders who prioritize thermal efficiency in extremely tight spaces. It delivers superior heat dissipation through its all-copper design, making it a smart choice for compact custom loops.

4 Best premium

PrimoChill ZEAGINAL Z16 Distro Plate with Pump

Best for: ZEAGINAL Z16 case owners

Lighting

5v Addressable RGB

Material

PMMA

Weight

5 pounds

View on Amazon: PrimoChill ZEAGINAL Z16 Distro Plate with Pump

This PrimoChill distro plate is designed specifically for the ZEAGINAL Z16 case. It includes a pump, so you do not need to buy one separately. The unit features 5V Addressable RGB lighting for visual customization. It weighs 5 pounds. This all-in-one plate suits builders who want a complete, pre-assembled solution for their specific case without sourcing separate components.

Pros

• Compatible with ZEAGINAL Z16 case
• Includes pump
• 5V Addressable RGB lighting

Cons

• Limited to ZEAGINAL Z16 case only
• Weighs 5 pounds
• No app control mentioned

Good fit if

• You own a ZEAGINAL Z16 case
• You want a pump included
• You prefer 5V RGB lighting

Skip if

• You use a different case model
• You need 12V RGB support
• You want a lighter build

Verdict: PrimoChill ZEAGINAL Z16 Distro Plate is a specialized solution for ZEAGINAL Z16 owners. It fits builders who need a ready-made plate with an integrated pump and RGB lighting for their specific chassis.

5 Best aluminum

Tangxi 480mm Aluminum 18-Tube Radiator

Best for: pure aluminum loops needing 480mm cooling

Radiator Size

480mm

Material

Aluminum Alloy

Thread Size

G1/4

Weight

1.81 pounds

View on Amazon: Tangxi 480mm Aluminum 18-Tube Radiator

The Tangxi 480mm radiator is a heat exchanger built from aluminum alloy. It features G1/4 threads for standard tubing connections and includes an internal water separator to manage fluid flow. Weighing 1.81 pounds, it offers a stable base for your cooling loop. This unit suits builders who need a large surface area for heat dissipation in standard desktop cases.

Pros

• 480mm size provides extensive cooling surface area
• Aluminum alloy construction ensures durability
• G1/4 thread size for easy fitting compatibility
• Built-in water separator improves fluid management

Cons

• Aluminum material may corrode if mixed with copper components
• No included fans or mounting hardware
• Heavy at 1.81 pounds for some setups

Good fit if

• You need a 480mm radiator for high heat loads
• You are building a loop with compatible aluminum parts
• You want standard G1/4 thread connections

Skip if

• You require copper cores for mixed-metal compatibility
• You need a smaller 240mm or 360mm footprint
• You want a pre-assembled unit with fans included

Verdict: Tangxi 480mm Aluminum Radiator is a solid choice for builders prioritizing surface area and standard thread compatibility in a pure aluminum loop.

6 Also great

Bykski O11 Dynamic XL Distro Plate with DDC Pump

Best for: LIAN LI O11 Dynamic XL owners

Lighting

5v Addressable RGB

Material

PMMA

Pump Compatibility

DDC

Dimensions

16.7 × 5.67 × 1.32 inches

Weight

10 pounds

View on Amazon: Bykski O11 Dynamic XL Distro Plate with DDC Pump

This distribution plate is engineered for the LIAN LI O11 Dynamic XL case. It features a full PMMA acrylic body with 5v addressable RGB lighting. The unit includes a DDC pump with an armor heatsink. It measures 16.7 inches long and weighs 10 pounds. This setup simplifies loop layout with minimal tubing runs. It suits users who want a clean, parallel line aesthetic for their water-cooling rig.

Pros

• Full PMMA acrylic construction
• Includes 5v Addressable RGB lighting
• Pre-assembled with DDC pump and armor
• Case-specific fit for LIAN LI O11 Dynamic XL

Cons

• Limited to LIAN LI O11 Dynamic XL case compatibility
• Heavy at 10 pounds
• No app or software control mentioned

Good fit if

• You own a LIAN LI O11 Dynamic XL case
• You prefer a pre-assembled distribution plate
• You want 5v addressable RGB lighting

Skip if

• You use a case other than the LIAN LI O11 Dynamic XL
• You need a distro plate without a pump
• You require software control for lighting

Verdict: Bykski LIAN LI O11 XL Distro Plate fits owners of the LIAN LI O11 Dynamic XL who want a pre-assembled, heavy acrylic plate with RGB lighting. It is not suitable for other cases or those needing software control.

7 Also great

Bykski InWin 925 Distro Plate with DDC Pump

Best for: InWin 925 case owners

Lighting

5v Addressable RGB

Material

PMMA

Pump Compatibility

DDC

Dimensions

14.9 × 5.24 × 1.32 inches

Weight

10 pounds

View on Amazon: Bykski InWin 925 Distro Plate with DDC Pump

This distro plate is designed specifically for the InWin 925 case. It features a full PMMA construction with 5v Addressable RGB lighting. The unit includes a DDC pump with an armor heatsink. It measures 14.9 inches in length and weighs 10 pounds. This pre-assembled plate simplifies loop layout by reducing tubing runs. It suits users seeking a clean, case-specific aesthetic.

Pros

• Pre-assembled for quick installation
• Includes DDC pump with armor
• 5v Addressable RGB lighting
• Full PMMA construction
• Case-specific fit for InWin 925

Cons

• Limited to InWin 925 case compatibility
• Heavy at 10 pounds
• No mention of software control for RGB

Good fit if

• You own an InWin 925 case
• You want a pre-assembled distro plate
• You prefer DDC pumps with armor

Skip if

• You use a case other than InWin 925
• You need pump-less distro plates
• You want a lightweight acrylic plate

Verdict: Bykski InWin 925 Distro Plate is a heavy, case-specific solution for InWin 925 owners who want a pre-assembled loop centerpiece with DDC pump support.

Specifications side by side

Frequently asked questions