
Silicon Power 4TB SSD 3D NAND A55 SLC Cache Performance Boost SATA III 2.5" 7mm (0.28") Internal Solid State Drive (SP004TBSS3A55S25) is priced at £288.99 — stable over the last 30 days.
Price last checked: 18 Apr 2026, 16:58
The Silicon Power 4TB SSD 3D NAND A55 is a 2.5-inch internal solid state drive with a SATA 6 GB/s interface, offering a capacity of 4TB. It features 3D NAND flash and SLC Cache Technology, which provide high transfer speeds and a performance boost, making it suitable for users who require faster bootup and improved system performance. This drive is ideal for Ultrabooks and ultra-slim notebooks due to its 7mm slim design, and is suitable for those seeking a reliable storage solution with enhan...
At £288.99, Silicon Power 4TB SSD 3D NAND A55 SLC Cache Performance Boost SATA III 2.5" 7mm (0.28") Internal Solid State Drive (SP004TBSS3A55S25) is at or near its lowest tracked price of £288.99. The 30-day average is £289.42, making this a good time to buy if you've been waiting for a deal.

£0.13/GB
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£0.17/GB
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£108.99/TB
Updated 55m ago

£0.23/GB
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Explains how to compare SSD endurance (TBW/DWPD), warranty terms, controller/DRAM design, and real-world performance metrics like sustained writes after SLC cache, 4K QD1 latency, and thermals.
NVMe vs SATA, TLC vs QLC, DRAM cache — cut through the jargon and pick the best SSD for your PC build or upgrade.