Crucial 16GB DDR4-2666 SODIMM Laptop Memory CL19
The Crucial 16GB DDR4-2666 SODIMM is a new laptop memory module running at 2666 MT/s with CL19 timings on 1.2 V. It's the right choice if you want to take an old 4-8 GB laptop and turn it into a smooth multitasking machine for 2026. At N.N Laptops in Hafeez Center, Lahore, this stick costs Rs. 8,500 with a 30-day check warranty and Lahore delivery.
Module specifications
| Brand | Crucial |
|---|---|
| Capacity | 16GB |
| Speed | DDR4-2666 (2666 MT/s) |
| CAS latency | CL19 |
| Voltage | 1.2 V |
| Form factor | 260-pin SODIMM (1.2 V) |
| ECC | Non-ECC, unbuffered |
| Condition | New |
| Warranty | Lifetime brand + 30-day N.N Laptops check |
Which laptops accept this RAM?
Any laptop with a DDR4 SODIMM slot running at 2666 MT/s or higher. The module is JEDEC-standard and down-clocks automatically if your laptop's CPU/chipset runs slower. We have personally tested it in Dell Latitude 7490, Latitude 5490, Inspiron 15 3501 XPS 13 9370. WhatsApp 0314 4000131 with your laptop model and we'll confirm before shipment. See pair this with an SSD upgrade for the full memory catalogue.
How to confirm DDR4 vs DDR3
Run Crucial System Scanner or open Task Manager > Performance > Memory. The exact type is shown. DDR4 SODIMMs have the notch in a different position from DDR3, so the two are not interchangeable.
How much RAM does a 2026 laptop actually need?
- 4 GB: obsolete. Windows alone uses 2-3 GB. Avoid for any productivity use.
- 8 GB: fine for office, Chrome (up to 10 tabs), light photo editing, casual gaming.
- 16 GB: sweet spot for 2026 — handles Chrome 30+ tabs, Photoshop, video calls, Visual Studio, light gaming all at once.
- 32 GB: for video editors, 3D modellers, machine-learning students, gamers with many background apps.
Single stick or matched pair?
If your laptop has two SODIMM slots, two matching modules in dual-channel mode are noticeably faster than a single stick of the same total size — especially on iGPU-based laptops where the graphics chip shares system memory. We sell matched 2 x 8 GB and 2 x 16 GB kits at a small premium and recommend them whenever your laptop allows two slots.
Installation
Power down, remove the bottom cover, find the SODIMM slots (typically two stacked vertically). Press down on the metal clips to release any existing module, then push the new module in at a 30° angle and press flat until the clips snap. Reassemble and boot — Windows will detect the new RAM automatically. See matched memory kits for dual-channel kits.
Where to buy DDR4 SODIMM in Lahore, Pakistan
This module is in stock at our Hafeez Center counter on the 3rd floor (Shop 66A) for Rs. 8,500. Lahore delivery, with nationwide delivery via TCS / Leopards via TCS/Leopards. Walk-in welcome. WhatsApp 0314 4000131 for compatibility advice. To pair this with an SSD upgrade, see laptop parts catalogue.
Frequently asked questions
Will this 16GB DDR4-2666 module fit my Dell Latitude 7490?
Yes — the Latitude 7490 has two DDR4 SODIMM slots running at 2400 MT/s. This module is downward compatible. WhatsApp 0314 4000131 with your exact model to confirm.
DDR4-2666 vs 3200 — which should I buy?
If your laptop's CPU supports 3200 MT/s (most 10th-gen+ Intel and Ryzen 4000+ models), buy 3200 — it down-clocks if needed and you have a faster spare for future builds. If you're on an older 7th-9th gen Intel machine, 2666 is fine and slightly cheaper.
Should I use single-channel or dual-channel?
Always dual-channel where possible. Two matching SODIMMs give roughly 10-25% real-world performance gain over a single module, especially in iGPU gaming and video editing. Ask us about matched kits.
Is this a brand-new sealed module?
Yes — sealed retail packaging with manufacturer warranty card.
How long does laptop RAM last?
DDR4 has no moving parts. In practice, well-cooled SODIMMs last 10-15 years without degrading. The lifetime warranty on new sticks reflects this.
Why Choose N.N Laptops for Your RAM Upgrade?
At N.N Laptops, owned by Sayam, we understand the Pakistani laptop market inside-out. Every stick of Crucial 16GB DDR4-2666 SODIMM we sell is bench-tested and quality-checked before dispatch. Whether you're in Lahore, Karachi, Islamabad, Rawalpindi, Faisalabad, Multan, Peshawar, or Sialkot, we offer same-day delivery within Lahore and nationwide shipping via TCS / Leopards. The listed price on nnlaptops.com is Rs. 18,000 for a brand-new sealed module with a 30-day replacement warranty from us, plus the manufacturer's lifetime warranty. For walk-in customers at Hafeez Center, Gulberg III, Lahore, we offer a special counter price of Rs. 8,500 with a 30-day check warranty — so you can choose the option that suits you best. WhatsApp Sayam at 0314 4000131 for live photos, compatibility checks, or to place an order.
Real-World Performance Gains
Upgrading from 8GB to 16GB of this Crucial DDR4-2666 memory transforms a sluggish laptop. Users report smoother multitasking: opening 20+ Chrome tabs while running Spotify, Slack, and a video call without lag. In photo editing with Adobe Photoshop, large file handling becomes snappier. For developers running Visual Studio or Android Studio, build times decrease noticeably. Even gamers see better frame rates in titles like Fortnite or CS:GO when system RAM isn't a bottleneck. This module is compatible with a wide range of laptops beyond Dell — including HP ProBook 450 G6, Lenovo ThinkPad T480, and ASUS VivoBook S15. If you're unsure, just WhatsApp the model number to 0314 4000131 and we'll verify.
Tips for a Successful Upgrade
Before buying, check if your laptop has accessible SODIMM slots (most 15.6-inch and some 14-inch models do). If you're installing in a Dell Latitude 7490, the second slot is under a metal shield — just lift it gently. We recommend using a plastic pry tool to avoid damage. After installation, verify the memory in BIOS or Task Manager. For maximum performance, pair this 16GB stick with an SSD from our shop — visit nnlaptops.com/shop/ssd-hdd for options. Call or WhatsApp Sayam at 0314 4000131 if you need a full upgrade package.
