QCT1250 vs ECT1250 hdd tray design one =/= the other

Question

These are two distinctly different design of hdd tray.

#1 One design has 3.5 hdd directly mounted on the tray via 4x #6-32 screws en face. Dell video mentions: for Dell Slim ECS1250 or the Dell Tower ECT1250. E for Economy (or cheap n quick, the old Inspiron).

This design has no ODD. ECT1250 chassis front has no opening for built in ODD any way.

https://www.dell.com/support/contents/en-us/videos/videoplayer/how-to-install-the-hard-drive-and-drive-bay/6377059871112

#2

The other design has 4x “HP style” side mount blue grommet which lets the 3.5” hdd slide into a caddy of the tray.

https://www.dell.com/support/contents/en-in/videos/videoplayer/how-to-install-the-hard-drive-optical-drive-and-drive-bay/6377058990112

This more elaborate design allows a slim odd to be mounted on top of 3.5 hdd. Dell video mentions: for

Dell Pro Tower QCT1250/ QCT1255, Dell Pro Tower Plus QBT1250, Dell Pro Slim QCS1250/QCS1255, or the Dell Pro Slim Plus QBS1250.

Q for business class the old Optiplex, “high end”?

The ODD bezel is quite subtle on the front bezel.
ISPY.

redxps630 · Accepted Answer

Dell Chris M:

Dell sales part 575-BCSK shows as compatible with =
Tower ECT1250

ship with =

3W34N 3.5” HDD Caddy Bracket
G0F5J #6/32 screw
5GPWK HDD power cable
MKT27 HDD sata cable

https://www.dell.com/community/en/conversations/dell-pro-desktops/35-hdd-caddy-bracket-with-cable-575-bcsk-rnjc4/68d2b5298ca2284a24933862

I confirm 3W34N is correct p/n of this simple no frill hdd tray aka caddy (see pic)

redxps630 · Accepted Answer

The other hdd tray is more fancy part number is DELL ASSY, BRKT, BAY, HD/ ODD, MT/ SF, D14 (G0WKG)

redxps630 · Accepted Answer

more user pic which shows odd installed in the tray with odd latch shown

https://www.dell.com/community/en/conversations/dell-pro-desktops/tower-ect1250-help-adding-extra-hard-drive-need-satapwr-cable/680cbfbecf0d62741ca491c5

redxps630 · Answer

Did you know that ECT1250 has two kinds of motherboards (different cpu socket LGA1700 vs LGA1851, different chipset). Dell is probably slipping in the older Optiplex 7020 motherboard w Q670 chipset and repackage it as the low end option of ECT/QCT w ?new bios. talk about cleaning out the old stock.

	OPTION 1	OPTION 2
Processors	Intel Core i3 Intel Core i5/i5F Intel Core i7/i7F	Intel Core Ultra 5/7
Chipset	Intel Q670	Intel Q870

so does

Pro Tower QCT1250.

	OPTION 1	OPTION 2
Processors	Intel Core i3/i5 vPro/i7 vPro Intel 300	Intel Core Ultra 5/7
Chipset	Intel Q670	Intel Q870

redxps630 · Answer

to be complete here are p/n of odd latch along w other QCT1250 optional parts (Optiplex 7030) BRKT, BAY, HD/ODD, MT/SF, D14 G0WKG CRD, I/O, DP2.1, UHBR20, D14 369N7 CRD, I/O, DP2.1, UHBR20, V2 7XD14 CRD, I/O, HDMI2.1, D14 5CRR6 LTCH, ODD, SLIM, MT/SFF, D14 W4MXJ NUT, M2, CRD, SFF, D10/P10 81CF9

Dell Pro Desktops

QCT1250 vs ECT1250 hdd tray design one =/= the other

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BRKT, BAY, HD/ODD, MT/SF, D14	G0WKG
CRD, I/O, DP2.1, UHBR20, D14	369N7
CRD, I/O, DP2.1, UHBR20, V2	7XD14
CRD, I/O, HDMI2.1, D14	5CRR6
LTCH, ODD, SLIM, MT/SFF, D14	W4MXJ
NUT, M2, CRD, SFF, D10/P10	81CF9