Dell Technologies Rail, Bracket, and Tray Guide November 2022

Rack rails technical details

Table 1. Rack types supportedTable describing rack types supported.
Product	Two-post square support	Two-post round support	Two-post threaded support	Four-post square support	Four-post round support	Four-post threaded support
1U-S-RR	Yes: not recommended	Yes: not recommended	Yes: not recommended	Yes	Yes	Yes
1U-R-RR	Yes: not recommended	Yes: not recommended	Yes: not recommended	Yes	Yes	Yes
1U-M-RR	Yes: not recommended	Yes: not recommended	Yes: not recommended	Yes	Yes	Yes
2U-S-RR	No	No	No	Yes	Yes	Yes
2U-E-RR	No	No	No	Yes	Yes	Yes
1U-Z93xx-RR	No	No	No	Yes	Yes	Yes
1U-S52-S41-12-4P	No	No	No	Yes	Yes	Yes
1U-EMC-3.14-RR	No	No	No	Yes	Yes	Yes
1U-EMC-3-RR	No	No	No	Yes	Yes	Yes
2U-EMC-Z92xx-RR	No	No	No	Yes	Yes	Yes
1U-DN-RR	No	No	No	Yes	Yes	Yes
2U-DN-RR	No	No	No	Yes	Yes	Yes
2U-DN-4P	No	No	No	Yes	Yes	Yes
2U-EMC-RR	No	No	No	Yes	Yes	Yes
1U-DN-RR-Reversible	No	No	No	Yes	No	No
1U-EMC-Gen3/3.14-RR	No	No	No	Yes	Yes	Yes

Table 2. Rail adjustability rangeTable describing rail adjustability range
Product	Square minimum	Square maximum	Round minimum	Round maximum	Threaded minimum	Threaded maximum
1U-S-RR	470	770	456	763	462	794
1U-R-RR	572	770	560	763	580	794
1U-M-RR	450	770	450	763	450	794
2U-S-RR	595	914	581	907	595	929
2U-E-RR	595	914	581	907	595	929
1U-Z93xx-RR	457	787	457	787	457	787
1U-S52-S41-12-4P	660.4	812.8	660.4	812.8	660.4	812.8
1U-EMC-3.14-RR	558.8	863.6	558.8	863.6	558.8	863.6
1U-EMC-3-RR	558.8	863.6	558.8	863.6	558.8	863.6
2U-EMC-Z92xx-RR	558.8	914	558.8	914	558.8	914
1U-DN-RR	539.7	1041.4	539.7	1041.4	539.7	1041.4
2U-DN-RR	558.8	1066.8	558.8	1066.8	558.8	1066.8
2U-DN-4P	584.2	787.4	584.2	787.4	584.2	787.4
2U-EMC-RR	558.8	914	558.8	914	558.8	914
1U-DN-RR-Reversible	560	877	N/A	N/A	N/A	N/A
1U-EMC-Gen3/3.14-RR	558.8	863.6	558.8	863.6	558.8	863.6