KingFast Laptop RAM – 4GB DDR4 2666MHz SO-DIMM | Black (New)

Upgrade or repair a compatible laptop, mini PC or all-in-one computer with the KingFast 4GB DDR4-2666 SO-DIMM memory module. Adding RAM can improve everyday responsiveness and help the computer manage applications, browser tabs and background processes more effectively.

This single 4GB module operates at speeds of up to 2666MT/s and uses the compact 260-pin SO-DIMM form factor designed for compatible laptops and small-form-factor computers.

Operating at 1.2V, DDR4 memory provides efficient power consumption and reduced heat generation compared with older DDR3 memory. The module is suitable for replacing a faulty compatible RAM stick or expanding a computer with an available DDR4 SO-DIMM slot.

Key Features

💾 4GB Memory Capacity – Adds working memory to a compatible computer
⚡ 2666MT/s Memory Speed – Suitable for everyday computing and multitasking
💻 Laptop SO-DIMM Format – Designed for compatible laptops and compact systems
🔌 260-Pin DDR4 Module – Fits supported DDR4 SO-DIMM memory slots
🌡️ Low 1.2V Operation – Efficient power consumption and reduced heat generation
🧩 Single 4GB Module – Suitable for replacement or memory expansion
📈 Improved Responsiveness – Helps compatible systems manage applications more efficiently
🔇 Silent Operation – Passive component with no fans or moving parts
🛡️ Non-ECC Memory – Intended for standard consumer laptops and compact computers

Specifications

Brand: KingFast
Product Type: Laptop Memory Module
Model / Part Number: KF2666NDCD4-4GB
Memory Capacity: 4GB
Kit Configuration: 1 × 4GB
Memory Type: DDR4 SDRAM
Memory Format: SO-DIMM
Memory Speed: 2666MT/s
Common Speed Description: DDR4-2666 / 2666MHz
PC Rating: PC4-21300
Pin Count: 260-Pin
Operating Voltage: 1.2V
Error Correction: Non-ECC
Buffering: Unbuffered
Registered Memory: No
Heat Spreader: No
Colour: Black Circuit Board
Compatibility: Compatible laptops, mini PCs and selected all-in-one computers supporting 260-pin DDR4-2666 SO-DIMM memory
Desktop DIMM Compatibility: No – this is a laptop-size SO-DIMM module
DDR3 Compatibility: No
DDR5 Compatibility: No

Condition

New
✅ Brand New
✅ Genuine KingFast Product
✅ 4GB Memory Capacity
✅ DDR4-2666 SO-DIMM Format
✅ Ready to Install

What’s Included

1 × KingFast 4GB DDR4-2666 260-Pin SO-DIMM Laptop Memory Module

Perfect For

💻 Laptop Upgrades – Increase memory in a compatible DDR4 laptop
🔧 Laptop Repairs – Replace a faulty compatible memory module
📊 Everyday Multitasking – Improve handling of applications and browser tabs
🏢 Office Computers – Support documents, email and productivity software
🎓 Student Laptops – Suitable for browsing, study and communication applications
🖥️ Compatible Mini PCs – Upgrade compact systems using DDR4 SO-DIMM memory
🧩 Memory Expansion – Add RAM where a compatible slot is available

Safety Information

⚠️ Confirm that the computer supports 260-pin DDR4 SO-DIMM memory before installation.
⚠️ Check the computer’s maximum supported RAM capacity and memory speed.
⚠️ The module may operate below 2666MT/s if limited by the processor or motherboard.
🔌 Switch off and disconnect the computer from power before installation.
🔋 Disconnect the internal battery where safely possible before opening the laptop.
⚡ Use suitable anti-static precautions when handling the memory module.
🧩 Align the notch correctly and never force the module into the slot.
🛠️ For matched-memory operation, use a compatible module with equivalent specifications.