Which SSD cache should I use for my NAS?
There are two main types of M.2 SSD. One is regular SATA speed and there is NVME M.2 SSD. The difference is quite significant. SATA speed is around 500MB/s whereas NVMe is above 2000MB/s.
Not all NAS support NVME speed. You need to check specs. Here is a short list of M.2 compatibility per NAS:
NAS with built in cache slots
RS1619xs+ – built in NVME cache
DS918+ – built in NVME cache
DS1019+ – built in NVME cache
upcoming DS920+, DS718+, DS420+ – built in NVME cache
NAS with NVME PCIe card
| NVMe & SATA SSD – both types supported |
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NAS with SATA SSD PCIe card
| SATA SSD only |
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Qnap SATA speed M.2 based NAS:
HS-453DX-4G – SATA M.2
TS-451DeU-2G -SATA M.2
TS-473 ans othe x73 models -SATA M.2
TS-932X -SATA M.2
TVS-473e and other 73e models -SATA M.2
TS-453BT3 -SATA M.2
TVS-472XT and other 72XT and 72N models -NVME M.2
TVS-682 and other x82 models -SATA M.2
TS-1673U -SATA M.2
TS-1685 -SATA M.2
Here are recommended NVME speed SSD
Samsung
| Price/TB | Price | Capacity | inch | MTBF | RPM | read/write | IOPS | Watt | W | Endurance | url |
| £187 | £187 | 1TB | M.2 | 1.5m hours MTBF | SSD | 3500/3300 | <550K | 5.8 | 5yr | 0.33 |
Samsung SSD 970 EVO PLUS MZ-V7S1T0BW M.2 2280 NVMe 1TB SSD
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| £194.5 | £389 | 2TB | M.2 | 1.5m hours MTBF | SSD | tbc/tbc | <560K | tbc | 5yr | 0.33 |
Samsung SSD 970 EVO PLUS MZ-V7S2T0BW M.2 2280 NVMe 2TB SSD
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| £216 | £108 | 500GB | M.2 | 1.5m hours MTBF | SSD | 3500/3200 | <550K | 5.6 | 5yr | 0.33 |
Samsung SSD 970 EVO PLUS MZ-V7S500BW M.2 2280 NVMe 500GB SSD
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| £276 | £69 | 250GB | M.2 | 1.5m hours MTBF | SSD | 3500/2300 | <550K | 5 | 5yr | 0.33 |
Samsung SSD 970 EVO PLUS MZ-V7S250BW M.2 2280 NVMe 250GB SSD
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EVO
| Price/TB | Price | Capacity | inch | MTBF | RPM | read/write | IOPS | Watt | W | Endurance | url |
| £188 | £188 | 1TB | M.2 | 1.5m hours MTBF | SSD | 3400/2500 | 450-500K | 6 | 5yr | 0.33 |
Samsung SSD 970 EVO MZ-V7E1T0BW M.2 2280 NVMe 1TB SSD
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| £196 | £98 | 500GB | M.2 | 1.5m hours MTBF | SSD | 3400/2300 | 370-450K | 5.7 | 5yr | 0.33 |
Samsung SSD 970 EVO MZ-V7E500BW M.2 2280 NVMe 500GB SSD
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Seagate
| Price/TB | Price | Capacity | inch | MTBF | RPM | read/write | IOPS | Watt | W | Endurance | url |
| £199.48 | £383 | 1.92TB | M.2 | SSD | 3150/850 | <290K | 6 | 5yr | 1 |
Seagate Ironwolf 510 SSD (Bulk) ZP1920NM30011 M.2 2280 NVMe 1.92TB SSD
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| £238.54 | £229 | 960GB | M.2 | SSD | 3150/1000 | <380K | 6 | 5yr | 1 |
Seagate Ironwolf 510 SSD (Bulk) ZP960NM30011 M.2 2280 NVMe 960GB SSD
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| £252.08 | £121 | 480GB | M.2 | SSD | 2650/600 | <193K | 6 | 5yr | 1 |
Seagate Ironwolf 510 SSD (Bulk) ZP480NM30011 M.2 2280 NVMe 480GB SSD
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| £350 | £84 | 240GB | M.2 | SSD | 2450/290 | <100K | 5.3 | 5yr | 1 |
Seagate Ironwolf 510 SSD (Bulk) ZP240NM30011 M.2 2280 NVMe 240GB SSD
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Here are recommended SATA speed SSD
Samsung
| Price/TB | Price | Capacity | inch | MTBF | RPM | read/write | IOPS | Watt | W | Endurance | url |
| £130 | £260 | 2TB | M.2 | 1.5m hours MTBF | SSD | <550/<520 | <90-98K | 3 | 5yr | 0.33 |
Samsung SSD 860 EVO MZ-N6E2T0BW M.2 2280 6Gb/s 2TB SSD
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| £133 | £133 | 1TB | M.2 | 1.5m hours MTBF | SSD | <550/<520 | <90-98K | 3 | 5yr | 0.33 |
Samsung SSD 860 EVO MZ-N6E1T0BW M.2 2280 6Gb/s 1TB SSD
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| £152 | £76 | 500GB | M.2 | 1.5m hours MTBF | SSD | <550/<520 | <90-98K | 2.5 | 5yr | 0.33 |
Samsung SSD 860 EVO MZ-N6E500BW M.2 2280 6Gb/s 500GB SSD
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| £208 | £52 | 250GB | M.2 | 1.5m hours MTBF | SSD | <550/<520 | <90-98K | 2.2 | 5yr | 0.33 |
Samsung SSD 860 EVO MZ-N6E250BW M.2 2280 6Gb/s 250GB SSD
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Western Digital
| Price/TB | Price | Capacity | inch | MTBF | RPM | read/write | IOPS | Watt | W | Endurance | url |
| £116 | £116 | 1TB | M.2 | 2M hours MTTF | SSD | 560/530 | 85-95K | <3.75 | 5yr | 0.33 |
Western Digital WD Red SA500 SSD WDS100T1R0B M.2 2280 6Gb/s 1TB SSD
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| £120.5 | £241 | 2TB | M.2 | 2M hours MTTF | SSD | 560/530 | 85-95K | <3.80 | 5yr | 0.36 |
Western Digital WD Red SA500 SSD WDS200T1R0B M.2 2280 6Gb/s 2TB SSD
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| £132 | £66 | 500GB | M.2 | 2M hours MTTF | SSD | 560/530 | 85-95K | <3.35 | 5yr | 0.38 |
Western Digital WD Red SA500 SSD WDS500G1R0B M.2 2280 6Gb/s 500GB SSD
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