samsung 850 evo comes with 5-year warranty. the price should be a bit higher than 400. i haven't seen anything with warranty that long and is under 400 price tag.
i use the same ssd optimizations from thessdreview.com since w7 until w10. (it's been rewritten several times but it's almost the same. for w7 sp1, remember to run windows experience index once after a fresh install. it makes the system recognize ssd and make certain optimizations automatically) additionally, i use ram disk to house user temporary folders and web browser cache (softperfect ramdisk), and ram cache (romex primocache) to reduce writes to ssd.

read carefully each of the ssd optimizations. only apply those that do not impact your common use. (since all of them don't impact my usage so i apply them all, including hibernate file that is used for fastboot) if you have a samsung drive, you can use its magician software for the same purpose.

with all the above, the outcomes are great (at least in my case), eg. after 3 years+ of using m5pro 512gb x2, each drive is still at 100% health.

Did you even search LOL
Got so many in Lelong

http://www.lelong.com.my/ssd-hdd-caddy-mou...7-01-Sale-I.htm
http://www.lelong.com.my/kingston-3-5-to-2...7-01-Sale-I.htm
http://www.lelong.com.my/2-5-to-3-5-ssd-mo...7-04-Sale-P.htm
http://www.lelong.com.my/2-5-to-3-5-inch-s...7-01-Sale-I.htm
http://www.lelong.com.my/5-25-to-2-5-3-5-h...7-01-Sale-I.htm
http://www.lelong.com.my/2-5-inch-ssd-hdd-...7-11-Sale-P.htm

Half-height drive bays are 1.625″ high by 5.75″ wide (41.3 mm × 146.1 mm), and are the standard housing for CD and DVD drives in modern computers, but were sometimes used for other things, including hard disk drives and floppy disk drives in the past.
https://en.wikipedia.org/wiki/Drive_bay

It's the same thing
Floppy drive is 3.5 inch. Same size with desktop HDD

Not worth the upgrade unless you just want better performance and not utilizing the full potential of SSD.
Get the cheapest possible SSD will do, Kingston SSD UV400 120GB around RM170, or maybe you can get lower using Lazada discount.
I have friend wanting the best Samsung EVO 850, just because you can transfer to new laptop later on if you planned for new laptop.

State your budget lar

Sandisk SSD Plus 480GB (RM477) - http://www.lelong.com.my/sandisk-ssd-plus-...7-01-Sale-I.htm
Kingston UV400 480GB (RM478) - http://www.lelong.com.my/kingston-ssd-int-...7-01-Sale-I.htm
PNY CS1311 480GB (RM479) - http://www.lelong.com.my/pny-cs1311-480gb-...7-01-Sale-I.htm
Apacer Panther 480GB (RM493) - http://www.lelong.com.my/apacer-panther-ma...7-01-Sale-I.htm
Kingston HyperX Fury (RM566) - http://www.lelong.com.my/kingston-ssd-sata...7-01-Sale-I.htm
Kingston HyperX Savage 480GB (RM578) - http://www.lelong.com.my/kingston-hyperx-s...7-08-Sale-P.htm
Samsung 850 EVO 500GB (RM689) - http://www.lelong.com.my/samsung-850-evo-5...7-07-Sale-P.htm

this one looks good. it's rare to find a new sata ssd with mlc nand for mainstream market these days (mostly are going tlc).

i mean they are getting rare in mainstream segment.

these days for sata ssd we have 3 tiers: entry-level/value, mainstream, and professional. (i think the same will apply to other variants too in near future, eg. pcie/nvme ssd) you still can get mlc ssd for professional tier.

a good mlc ssd still depends on technologies implemented (core and supporting). remember not all mlc nand are fast. as an example, for mlc nand itself, there are different technology implementations for mlc nand, hence some mlc nand produced based on older generations of technical specifications are actually slower.

this was why it's such a fuss about kingston's nand swap incident few years ago, http://www.anandtech.com/show/7763/an-upda...wer-micron-nand (pay attention to the bandwidth provided by each nand)

in short, choose toshiba's/samsung's toggle mode nand (toggle mode ddr), or those based on new onfi standards.

not many people really know what they're talking about sometimes about mlc nand type. toggle mode nand is actually a type of asynchronous nand. in the above report (and many other well-known ones) they made it sounded like it's synchronous vs asynchronous nand, which was wrong technically.

edit: additional reading if you wanna know more, http://www.samsung.com/global/business/sem...itepaper03.html

for plextor/liteon, yes there are differences; not significant if they're for normal use though. from the list, m6pro is what i will choose. it's the only performance sata ssd.

as for Liteon MU II 240GB vs Liteon SCS-256-L9S, mu ii is tlc ssd, while scs-256-l9s runs on mlc nand.

The last time (and the only time) i had this was because of sudden power loss. (Ssd as external storage) All data were gone. After a power recycling, initialized and formatted, it's still 100% health (using it till now)

if not handled properly, things like power loss will still happen. in my case, i disconnected the drive from computer while apparently something were still working in background with the ssd.

no, not all ssd has power loss prevention feature. however, it's not really a problem. (unless your area has a bad power supply in general; if that's the case, an ups will help reduce the risks)

sudden blackout? haha i am not sure too

surely ups can help. it's like a laptop with a functional battery. to me both hdd and ssd are susceptible to power loss. hdd has higher risks because of movable parts.

technically the true power loss prevention is a feature in some enterprise ssd. for consumer ssd, some do advertise that they have it, but its capability is usually limited (eg. only protect data at-rest, not on-the-fly like those found in enterprise ssd).

how important and practical is this feature to us consumers? it really depends. imo it's good to have it, but not really necessary.

if you're living in such an area, it's good to have an ups. it's not only for ssd but your whole system.

the guy in the thread described the true power loss protection. the part he said ups being irrelevant is kind of true in his context, but the main point of having ups is to protect a computer system from typical power loss scenarios, not the ones he described.

intel 320 is a very old drive. i don't think you should look for it purposely. (or to get those enterprise ssd just for this feature; they are expensive)

for ups, you have to start research. i am not familiar with ups either.

performing regular backups for data is a good practice. backups saved me many times already. the absence of the feature imo is related to manufacturing costs, and the relative low risks to suffer data loss from sudden power loss these days.

yes, ssd have smart functions. free tools like crystal diskinfo can show you ssd health. for normal use, it's not easy to wear it out.

in general, go for well-known brands in the market. (e.g. intel, samsung, crucial, kingston, sandisk) the general rule always applies: you get what you pay for.

to share some experience about my previous purchase; all were bought last year, and used for office work with occasional non-heavy file transfers only: out of 6 transcend s370 that i have (4x sata; 2x msata), one of them failed with initial symptoms of a dying hard drive. (e.g. experienced sudden slow speed for reads / writes; it is detected properly in bios; but i couldn't access it with various tools including diskpart) in the same batch i also have kingston savage (sata, 2x), kingston msata ssd (m.2 sata; forgot models; 2x) and samsung 850 evo (m.2 sata, more than 10). none of them have issues so far.

maybe it's just luck. to prevent downtime i have ordered few units as buffers in case of emergencies.

edit: the recent price hike for these drives are ridiculous. unless you really need it, it's better to look around first for better deals.

i have a lot of consumer ssds. (like crucial m500. they are damn old now. still, they are fine since i bought them; i'm not comparing it with high-performance ones, like 840/850 pro or intel s3700) this is the first ssd that failed on me for a time period of slightly over a year.

i don't think it's about tlc vs. mlc either. my samsung 840 evo's are still working fine in my xps.

yeah; ssd price is surely getting bumped again in near future, according to reports found online, and a visit to lyp recently. few days ago i visited a well-known shop at lyp, the shop keeper even bumped the price on the spot (telling me the latest price list for that ssd was, somehow, the 'old' price) come on, like i don't have choices :/

at least i don't feel any differences between the two. however i suggest going for 850 pro for its 10-year warranty. as for the recovery part, i'm not sure because both my 840/850 pro haven't failed yet. (still the better way to prevent such things is doing regular backups; the oldest but still the most efficient way to get back up from data loss)

finally the usual report from hardware.fr was out.

for ssds, the top brands with the least return rates:

1. Samsung 0,17% (previously 0,20%)
2. Intel 0,19% (previously 0,27%)
3. Crucial 0,31% (previously 0,28%)
4. Sandisk 0,31% (previously 0,62%)
5. Corsair 0,36% (previously 1,67%)
6. Kingston 0,44% (previously 0,29%)

ssds with highest return rates:
3,59% Kingston SSDNow KC400 Series 512gb
1,37% Crucial MX200 500gb
1,08% Crucial MX200 1tb
0,95% SanDisk SSD PLUS 480gb
0,93% Kingston SSDNow M.2 SATA G2 480gb

for more information, http://www.hardware.fr/articles/962-7/ssd.html

also don't forget to check out http://www.hardware.fr/articles/962-8/conclusion.html

edit: will be switching to 960 pro when i have the time to set it up. it's been in the package for too long :/