I don't get it? Why are these drives still on 16mb cache.

I only see 32mb ones in (older series) Seagates and also in 500/750gb Samsung F1s which are NOT the 334gb platter such as the 320/640/1000.

Will it come or not?

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2100+ AIUHB | Abit NF7-S 2.0 (vdimm, vtt, vdd, sinked) | 2x512 MBLI CH5 | 6200 @ 6600 | Tagan 420W
X2 3800 LCB1E | DFI Ultra D AD0(vcore, vdimm & read-out) | 2x512 BH5 | X800XT(vgpu, vdd, vddq) | Tagan U15-580 |
E6700 L701C @ 3.6 | ASUS P5K Dlx @515 | 2GB Ballistix 8500 | HX620(HOT AS HELL) | X1800XT 512
E6300 L627A | ASUS P5K | HX620 | 8500GT GDDR3 |