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How to upgrade laptop RAM in 2026: check DDR3 vs DDR4 vs DDR5 compatibility, how much memory you need, a step-by-step install guide, and what a RAM upgrade costs in India.

How to choose a PC cabinet in India: motherboard form factor, mid tower vs full tower, mesh-front airflow, cabinet with SMPS or without, GPU clearance, plus the best CPU cases by budget from Rs 922.

Buy refurbished laptops online in India from HP, Dell, Lenovo, Acer, Asus and Apple, starting around Rs 12,000. Brand guide, price bands, 6-month warranty, 7-day returns and GST invoice.

An internal SSD is the single best laptop upgrade you can make. We compare the 5 best internal SSDs for laptops in India 2026 - Samsung 990 EVO, Crucial T500, Samsung 980, WD Blue SA510 and Crucial BX500 - from Rs 3,779, plus honest advice on New vs Open Box vs Refurbished.

Best refurbished laptops under Rs 20,000 in India 2026. Tested, warranty-backed HP, Dell and Lenovo machines with Intel i5/i7, 8GB RAM and SSD storage. Compare specs, brands and refurbished vs open box - with pan-India delivery from Tech Guru Store.

Open box products are brand-new, unused IT items with opened packaging — sold 10-40% cheaper. Learn open box vs refurbished, what you can buy, warranty, and where to buy open box products in India.

New IT products are factory-sealed, never used, with full OEM warranty and a GST invoice. See exactly what you get with New vs Open Box, Refurbished and Used in India.

Yes, Tech Guru Store is genuine. It is the online store of Tech Guru IT Solutions - IT hardware since 2016, with a physical shop in Kalkaji, Delhi. GST invoice, warranty and pan-India delivery.