In my experience, when you're upgrading older office rigs, reliability should always come before chasing the highest benchmark scores. While SATA is fine, if your boards support NVMe, the price gap is so small now that it's usually worth the jump just for the better cable management.

I've had great luck with the Samsung 970 EVO Plus 500GB NVMe M.2 Internal SSD over the years. It's a bit of a classic now, but the build quality and the controller reliability are top-notch for a professional environment. If you're on a stricter budget, the Western Digital WD Blue SN580 1TB NVMe Gen4 SSD is a solid, no-frills choice that runs cool without a heatsink. Just a heads up—always double-check your BIOS settings for AHCI mode on those older machines to avoid any weird boot issues. Better safe than sorry! 🛠️

For your situation, I'd absolutely go with the Crucial MX500 500GB 3D NAND SATA 2.5 Inch Internal SSD. Honestly, I've deployed dozens of these in office upgrades over the years and they're fantastic! If your motherboards support it, stepping up to the Crucial P3 1TB PCIe Gen3 3D NAND NVMe M.2 SSD is a total game changer for just a few bucks more. Both are super reliable for daily tasks like Excel adn web browsing. Hope this helps!

So I've spent a lot of time lately looking at the market trends for these types of office refreshes and honestly the biggest thing you have to watch out for is component swapping in the budget tier. A lot of those cheaper brands change the controller or NAND without changing the model number which is why I tend to be pretty cautious and stick with companies that actually make their own flash memory. If you want something that's basically bulletproof for a business environment without paying the "Samsung tax" you should check out the SK Hynix Gold S31 500GB SATA SSD. SK Hynix is a massive tier-one manufacturer so the reliability is top-tier, well actually it's arguably more consistent than some of the budget lines from other big names. If your desktops have M.2 slots, the SK Hynix Gold P31 1TB NVMe SSD is another great shout because it runs super cool and is incredibly power efficient. Another solid one I've tracked is the Kioxia Exceria G2 1TB NVMe SSD. Kioxia is just the new name for Toshiba Memory and they still use decent controllers with DRAM which is pretty rare at that price point, making it a much safer bet for a busy office PC that's gonna be on all day every day.

In my experience, when you're doing a bulk office refresh on a tight budget, the real sweet spot is finding that perfect balance between price and long-term stability. I've been doing these types of upgrades for years, and while the big names are great, I've had amazing results with some of the more value-oriented brands that still offer decent warranties.

For your situation, I'd suggest looking at the Teamgroup T-Force Vulcan Z 512GB 2.5 Inch SATA III Internal SSD as a solid SATA alternative. It's usually super affordable and honestly, for Word and Excel, your staff won't notice the difference between this and a high-end drive. If you're dead set on NVMe (and I totally get why—the lack of cables is a lifesaver!), the SK hynix Gold P31 500GB PCIe NVMe Gen3 M.2 Internal SSD is fantastic. It's legendary for being power-efficient and staying cool without a bulky heatsink, which is perfect for those cramped office desktop cases!

Comparing the two: SATA is definitely the cheapest route and fits literally any old machine, while NVMe is snappier for heavy web browsing with 50+ tabs open (we've all seen those users lol). Tbh, if the price difference is less than $10, just go NVMe. It makes the build much cleaner! Anyway, back to the point—both these brands have been super reliable for me over the long haul. Good luck with the upgrades! Let me know if you need more info.